Planetary Imaging

[low oar]

You exposure needs to be low low

If you expose for Jupiter and the ISS flies past it will look like a bright smudge of white

Like 1 ms if I’m not mistaken

[woven kite]

i see

https://www.reddit.com/r/astrophotography/comments/ceykyj/comment/eucap5r/

this guy also used 1ms, his settings are in the comments

[low oar]

Yea it’s gotta be mad low

[woven kite]

tomorrow i have an 83° pass but clouds clouds more clouds

[low oar]

😳

[quick cairn]

Illuminated Passover?

[woven kite]

yeah from the horizon to 83° to horizon at mag -4

next passes for me on heavens above

[quiet glen]

So I screwed my iss Passover since I forgot my password to my laptop and it got locked 💔

I’ll have to try again whenever there is another

[white prawn]

https://tenor.com/view/whyyy-gif-3239499918304579127

[quiet glen]

It’s ok though since I legit had no clue what I was gonna do since I need to figure out settings all I know is get low exposure

[rain mauve]

Sv 305 pro, sctw 102 eq3

[rain mauve]

Anyway where can I download the raw files?

I wanna make hdr moon also xD

[ruby compass]

how are yall doing mars rn?

[flint siren]

daylight

[velvet island]

They live in space

In orbit

[low oar]

Different places in the world

[ruby compass]

just mid day?

[flint siren]

yes

tried to shoot it for 3 days straight but seeing was ass, but it's not really hard to find

[elder venture]

equator

[ruby compass]

dang

[woven kite]

it changed to partly cloudy/clear outside ill be attempting

https://tenor.com/view/happiness-love-happy-face-patrick-star-spongebob-gif-8985902394226722705

[quiet glen]

Good luck

[woven kite]

i got it!!!!! its overexposed but its thereeee

wait no its not overexposed

wow

[low oar]

Dang nice dude

[woven kite]

i was thinking of having my other camera on the side to get a trail shot but was running out of time

[low oar]

Valid

You got good results though

[woven kite]

yarh

and that was a half of the stack, so the other half might have frames of it too

first process with 9 frames im gonna do a few iterations later

1.50ms 250 gain

[low oar]

So sick!

What scope?

Can I process the file?

[woven kite]

C8

[low oar]

Nice

[woven kite]

for sure! let me go grab it from the other laptop

i would send the avi but for a 0.5 second video its 337mb 💀

[low oar]

That’s small

Send it in google drive

[woven kite]

i got it https://drive.google.com/file/d/1-DVbiYxFJqJDtk2_c87moYyLa2zVtFxl/view?usp=sharing

[low oar]

Thanks I’ll get to it tomorrow

[quiet glen]

I messed up my iss pass again

I clicked photo instead of video

[winter moat]

Bro That looks really good

[quiet glen]

🤦

I hope I get another pass soon

Should I go through my 17k images instead hopes of getting 1 frame

[quick cairn]

Buddy are you okay

[quick cairn]

Turn it into an SER video in PIPP

Then run the video through autostakkert

[quiet glen]

I have to get them into one drive since I took them on a mac

[quick cairn]

Lord

[quiet glen]

I don’t have any other laptop

Or would using a flash drive be better

[quick cairn]

That

Run sharpcap directly into the hat drive

[quiet glen]

Alright I’ll start doing that for now on

[celest grove]

some tips?

bc i wanna buy a sv705c and slap a pc cooler fan thingy on there to cool it

for a bit of deep sky and playnetary

[elder venture]

That won’t work.

You need a heat sink directly on the sensor

[celest grove]

for like ambient temp?

because if its on ambient temp its ok for me

[velvet island]

You wouldn't be able to stabilize its temperature though, which is essentially what cooling is for

[celest grove]

so its not very helpfull?

[elder venture]

You’re cooling the camera housing, not the sensor

The heatsink puts a direct thermal connection between the back of the camera and the sensor

[celest grove]

so for deepsky and planetary a eos 550d modified would be better?

[elder venture]

No it’d be worse

[celest grove]

bc of the older sensor?

[elder venture]

Since those run hotter and also can’t be cooled without drilling holes and putting a heat sink

[elder venture]

Partially

Mainly because dslr sensors aren’t very sensitive, run very hot in constant imaging and are very noisy

[celest grove]

so i acn put a heat sink on the sv705 but not the eos550da

[elder venture]

You can’t put one on either, it’s just a lot more dramatic with the eos because it’s hotter

You’ll need a player-one astronomy planetary camera at or above the Neptune-664C for one with a heatsink

Those actually get heat away from the sensor quite well and you can at least attach a cooler to it for results.

[thick heron]

You'd have better results with a Uranus-C and ACS, because the camera's body is designed for it.

[celest grove]

but it costs 400 bucks where i live without the acs

[elder venture]

The Neptune-664C also bears the capability of ACS

It’s my camera of choice

Check it out

I am very happy with its results even without an ACS

[thick heron]

If you want somewhat effective cooling in a planetary cam, they are the choice.

[elder venture]

Yeah. I don’t know of any other camera company that puts heatsinks in their planetary cams

[thick heron]

Only for these cameras + all their solar cams.

[elder venture]

God that Jupiter is compressed to hell

[celest grove]

all those images are

[elder venture]

My Neptune-664C runs near ambient in the winter just because of the heatsink (no fan attached)

Like a few degrees off

It’s surprisingly effective

[celest grove]

crazy

[thick heron]

Ambient for us is relatively warm for the most part in winter.

[celest grove]

but i just checked because where i live the uranus c (which i would choose) costs as much as the svbony sv605cc

[elder venture]

The measurement I remember is -2C Ambient at 1C Camera

[elder venture]

Where do you live?

[celest grove]

germany

[elder venture]

You don’t need to use a dealer lol, you can buy it from P1 directly

Should be like 311 eur before tax

And Germany has a great used market, I’m sure you can find a TEC cooled 585 from say ToupTek for 300-200

[celest grove]

yeah maybe

[velvet island]

How does it compare to imx585 cameras?

For deep sky

[elder venture]

It’s the exact same as the 585 in every regard besides surface area

It’s just 50% sized

It’s basically the poor man’s 585

[velvet island]

Oh wow and I thought the 585 was tiny

[elder venture]

There’s now also the new imx908

Starvis 3 sensor at the same size of the imx662

But at 4k with 1.45um pixels

And that’s a really really tiny sensor

[velvet island]

Damn

[hybrid rain]

my 585 from zwo runs like 4 above ambient usualy

[velvet island]

I should've gotten this instead of a coma corrector that I can't use

[hybrid rain]

why cant you use it?

[velvet island]

Focusing issues

[hybrid rain]

i hope you can focus better in the future

i find listening to music helps

[velvet island]

My telescope never listens to me so I don't think it'll listen to music

[hybrid rain]

:(

[quiet glen]

What exposure and gain are recommended for iss

I found 1 frame when i tried getting it I was using 300 gain and 1ms exposure would around 100 gain be better?

[winter moat]

beutiful :D

great work i like the colors

[rain mauve]

thanks bro xD

[flint siren]

My best solar white light shots from last year.

[quick cairn]

Honestly these are amazing

[flint siren]

poor connection

[winter moat]

https://tenor.com/view/homelander-the-boys-the-boys-s5-хоумлендер-патріот-gif-13152619462103688411

[winter moat]

they look really good bro

Nice work

[summer crypt]

someone help! this is all im getting with a 1500mm focal lenght and 2.5x barlow, is it because im using dslr

[polar forge]

You're shooting with a 600 mm. I assume yes.

[summer crypt]

fym 600? 1500x2.5 is 3750

[polar forge]

Oh I thought you were shooting with 600. 600x2.5 is 1500.

Set a lower ROI.

[summer crypt]

whats roi?

[polar forge]

Region of interest.

[summer crypt]

my roi is galaxies

[velvet island]

Cropping

[summer crypt]

oh

[velvet island]

When taking video

[summer crypt]

embarrasing

[polar forge]

Yes cropping.

you use sharpcap or firecap?

[summer crypt]

pipp autostakkerte and registax 6

[polar forge]

No... To capture the video?

[summer crypt]

my dslr... idk i just pressed record and let it do its thing for 5 minutes

[polar forge]

If you could set that ROI or crop it in the DSLR that would work.

Or if you can connect it to sharpcap where you easily can set the ROI etc.

I don't have a DSLR so I have no idea tbh

[summer crypt]

giving up on planetary✌️

[polar forge]

Nooo 🙁

[summer crypt]

taking a photo of the same planet over and over again doesent seem fun tbh...

[polar forge]

What camera do you have?

[summer crypt]

nikon d5100

[polar forge]

I'm reading about that camera. Seems like it's not possible to crop it via the camera itself or sharpcap or anything. In that case ur better off with an astrocamera.

Looks like you shot Jupiter not that high in the sky. That can cause the more blurry looking.

[summer crypt]

i was rreally excited to test the barlow

i didint even align it properly on the sky

i just kinda

speed allignment

[polar forge]

I see

[summer crypt]

i also shot it through clouds

[polar forge]

The sensor is so big it's a bit hard yeah

[velvet island]

Is that very undersampled

I always get blurry results

[polar forge]

Focal length and pixel size?

And did you drizzle or something?

[velvet island]

Yeah

That's not drizzled

[polar forge]

Damn

[velvet island]

Does that look like bad focus or just not sampled enough?

The barlow is very cheap too

[polar forge]

You can check https://astronomy.tools/calculators/ccd_suitability

[velvet island]

I'm at 0.43" / pixel

I'd need a 5x barlow apparently

[polar forge]

Or bin.

?×

[velvet island]

Drizzle?

[polar forge]

No you don't wanna drizzle in this case I think

[flint siren]

I've finally decided to solve my most annoying issue with dealing with a lot of filter combinations. Two filter wheels stacked, that allows me to create all my most important different niche filter combinations while not having to dismantle the imaging train. That way i can do batch imaging with different combinations of niche filters like NUV and R, G and B for instance. Best thing is it's very easy to use, and i can technically use all of the filters of the largest filter wheel (which contain the most basic) without chaging a filter in the second one. In order, there's all the filters included : FW1 - Luminance, Red, Green, Blue, Red+IR, IR720, IR850, CH4 | FW2 - Clear filter, IR Cut, 7nm Ha, #W47 Violet filter and soon to arrive IR685.

Tilting in the imaging train isn't really an issue, as the whole thing is actually very sturdy and the C8's adapter is very strong too. The whole weight of the train is pretty light. And the best for last, all the fitlers are parafocal.

[olive saddle]

Biblically accurate filter wheel

[velvet island]

That wheel is wheeling

[hybrid rain]

double stacking is so smart

[rain mauve]

afaik dslr like canon only have true crop and doesnt compress the video quality, nikon yeah you can shoot with true crop mode, but it compressed it and when it stacks it gives like weird artefact

https://kuvacode.com/blog/canon-and-nikon-live-view-quality/ you can search it in here

saturn and titan

[silent mesa]

Nice words

[velvet island]

What should I do?

[low oar]

Haha good one dude

[summer crypt]

why the hate

[low oar]

No hate just made me laugh

You’ll get there you got good images for your gear 👍

[summer crypt]

ballright

[quiet glen]

I’m gonna do my first Jupiter timelapse tonight

[summer crypt]

cant even like imaging galaxies anymore smh

[quiet glen]

Any tips

[low oar]

Processing this data is so fun

[summer crypt]

could i cover half of my telescope’s aperture with a black piece of cardboard to double my f so planets arent overexposed?

oh yeah and how do i focus on planets? does a bahtinov work?

[thick heron]

Focus on the planet directly and don't nerf the telescope by covering half the mirror.

[summer crypt]

but my jupiter is just a white dot and i cant see the surface when i focus, my current strategy for focusing is turning the focuser until its the smallest

[thick heron]

Reduce the camera's exposure or Gain/ISO instead to get it properly exposed.

[summer crypt]

iso is at 100 and exposure is at its lowest, 1/25 seconds for video

[thick heron]

What camera is this?

[woven kite]

they said nikon d5100 i believe

[summer crypt]

yes

d5100

[woven kite]

i used a dslr for around year and the best result was using backyardeos with a smaller roi. i dont know if it supports nikon but i might have found something that you could crop and record on a laptop to get close to 1:1 pixel resolution https://www.youtube.com/watch?v=flLc5i_aH-w

[quick cairn]

You are limited by framerate

L

[woven kite]

he doesnt demonstrate it but its probably be in the software

this ones with backyardeos

[white prawn]

What is that camera's best frame rate? I could get 60fps on my DSLR, set ISO to 100 and exposure to 1/250. Sample image here.

[thick heron]

Watched a video and I see an option to adjust the minimum shutter speed on the D5100. Perhaps applicable here? https://youtu.be/o9lx7Hj6dzY

[quiet glen]

How do I get image perms in here?

[native plume]

for jupiter try your best in getting the moons as small as possible when focusing

[summer crypt]

ah

[hybrid rain]

magic

[hybrid rain]

sct

[summer crypt]

750mm with 3x barlow and planetary camera vs 1500 witj 2.5 barlow and dslr camera

[winter moat]

Nice

[woven kite]

iss 50° pass 1.1ms gain 260. i noticed the t mount being loose after shooting so focus was affected a little

reprocessed 83° pass from the 7th

[rain mauve]

last quarter moon

[quick cairn]

Awesome job

[quick cairn]

I watched this one too if this was like 2 hours ago

[rain mauve]

compositing 2 quarter moon, had so much fun processing this pic xD

[quiet glen]

That’s fire

[rain mauve]

Thanks!

[woven kite]

nice i have like 3 more high passes at dusk starting the 24th

[woven kite]

incredible ive never seen a composite presented like this

[rain mauve]

Thanks!

[quiet glen]

How do I get image perms

[polar forge]

You need @peak lance

[shy jolt]

thats cool

good idea

[quick cairn]

How much Integrstion

[thick heron]

Just single two minute stacks.

[quiet glen]

I’m making a timelapse of jupiters rotation any tips on settings I should turn on

[shy jolt]

ive would make each stack be like 2 minutes

also dslr or a astrocam?

[rain mauve]

Thanks

[low oar]

1 minute videos

[quiet glen]

I did 4000 frame videos last night at 1 minute intervals

Do I just use pipp to create the gif

[quick cairn]

Stack the images first

At the same %

[shy jolt]

stack and sharpen

[quiet glen]

Ok

I take it I should use the same sharpening settings across all the images

[quick cairn]

It the seeing is constant yes

[quiet glen]

Alright my seeing wasn’t great yesterday

[low oar]

I do

[quiet glen]

I had pretty bad seeing last night but am happy with the result

Seeing was so bad the moon disappeared

[quick cairn]

Pump up the brightness haha

[quiet glen]

i will when i have a chance to reprocess

[white prawn]

https://tenor.com/view/hurry-up-judge-judy-time-is-up-gif-8613963527341701454

[quiet glen]

I got school work

[white prawn]

Well chop chop on that, too

😁

[quiet glen]

I’ll most likely be able to do it tomorrow

[summer crypt]

why are there no stars?! fake ai nasa fraud

[shy jolt]

Don't stars orbit Jupiter?

[elder heath]

You're going to get put to death

They only orbit the earth

[flint siren]

They are just dots in the dome above the flat earth, what are y'all talking about ?

[velvet island]

Stars orbit the earth, we are the center of the universe obviously

We knew that 750 years ago, the governments censored the truth

[flint siren]

Seeing was good enough to do some NUV. Here's a comparison between the view in green filter and NUV.

[woven kite]

great stuff

[flint siren]

Another NUV vs G.

[hybrid rain]

does the higher theoretical resolution limit actually effect the images btw

[flint siren]

It does. NUV has more effective resolution than green.

But here my NUV is just a little bit under diffraction limited, so it does not really do a fair comparison. Also, NUV has less texture on the sunspots and granules, so again not a fair comp.

[hybrid rain]

ahh

i see

[flint siren]

Even at the resolution limit of both, the resolution difference is not really obvious due to the big difference in texture.

[hybrid rain]

i didnt know if daytime is just too seeing limited for uv to actually have an actual higher res xD

[flint siren]

It generally is, i just have a very good location.

Still not enough to do proper NUV though.

[hybrid rain]

i think the actual spot has slightly different structure

or it could be discord scaling the image weirdly

[flint siren]

Or the Sun just changed between the two captures.

[hybrid rain]

how far apart in time?!

[flint siren]

24 mins

[hybrid rain]

sun changes that much?!

[flint siren]

The sun changes actually a damn lot in WL.

[hybrid rain]

damn maybe i really do need to get a solar filter

[flint siren]

The granules are very active.

[hybrid rain]

gravy granules 🤤

[hybrid rain]

are they timelapsable?

[flint siren]

They are, i'm waiting for mine to load lol.

[hybrid rain]

over the course of a day it seems like it could be fun

[hybrid rain]

[flint siren]

that's 3 hours

[hybrid rain]

does swir have much of an effect on the sun?

[hybrid rain]

so ocean vibes

[flint siren]

Contrast becomes very low in NIR, don't know about SWIR.

[hybrid rain]

i think i gotta test lwir and swir on the sun

[flint siren]

I have better, i'm just searching for that dawn file.

[flint siren]

Should just be extremly low contrast.

[hybrid rain]

whys that?

[flint siren]

In NIR you can barely see the penumbra in live view without screen adjustements.

[flint siren]

Not sure.

[hybrid rain]

i see

[flint siren]

That's something you should look at. Perfectly illustrates what i was saying. https://www.astrobin.com/iqjmv9/

The texture is really different, and the diffraction is less visible.

I have posted two timelapse there.

[hybrid rain]

would at the very edge of the transmittable uv spectrum have the highest level of contrast?

[flint siren]

Ca K you mean ?

[hybrid rain]

i mean like juuust before the atmosphere blocks it

i cant remember like 250nm or something

[flint siren]

There's a band with crazy contrast near 393.4nm.

[flint siren]

Never seen images from beyond Ca K.

[hybrid rain]

regular scopes cant really do lower than 300

[flint siren]

That too.

[hybrid rain]

i think you can get like 40% transmission but thats sorta it

[flint siren]

Seeing will never let you imo, and the image will be hazy asf

don't mind me typing the wrong words

[hybrid rain]

wrong words arent real anyways

[hybrid rain]

the atmosphere should stop wobbling some time

it would be really nice imo

[flint siren]

No, not really. 300-400nm UV is really the limit of imaging currently, no standard astro CMOS sensor goes above that.

That's not even accounting seeing, ~350nm is really the limit of usable, even under great conditions.

[hybrid rain]

i mean just for in general tbh 😅

[flint siren]

Though if you do SWIR and LWIR images of the Sun, i'll be interested in seeing them.

Worth a ping

[hybrid rain]

probably be really really low snr

luckily long wavelength means i can do somewhat of a longer sub

[flint siren]

There's this.

Oh and yeah, you'll have terrible resolution.

[hybrid rain]

oh damn so it just gains back contrast juuust after im unable to image in that wavelength

1200nm is what i would be shooting

[flint siren]

Not sure it gains contrast, that's contrast boosted i believe

[hybrid rain]

the one on the right does look interesting imo

[hybrid rain]

oh yeah true

[flint siren]

You might get a good view of the umbra.

[hybrid rain]

yup, i have like 20 arcsecond res at lwir

[flint siren]

what's the aperture ?

[hybrid rain]

which part is the umbra?

[low oar]

1 week away

[hybrid rain]

for the lwir+mwir scope it will be 76.5mm

[hybrid rain]

its meant for widefield dso

[hybrid rain]

ohhh

the little black dot!!

i like that part

i feel like its hiding something

hole to hollow sun

[flint siren]

There's better contrast on this region in the reds, so i guess it goes on similarily in infrared.

[hybrid rain]

-# hollow sun theory

[hybrid rain]

must do

[hybrid rain]

im planning on buying 2 very very high quality gold mirrors in a few months

ooh

with my 6" lwir has about 10 arcsec res

im forgetting something

oh my god

i wont be able to do lwir solar without a germanium solar filter 😭

lwir sun is out the question

[flint siren]

foil has great transparency in NIR

too much actually

i guess next time i go out for solar and there's good seeing, i'll try NIR imaging

I have done some by the past but it was with the 5" at 19°

[flint siren]

I was lucky enough to have three days straight of good seeing in August 2024. 3 days timelapse.

[hybrid rain]

i forgot the sun does that

[hybrid rain]

i love how circle the sun is

then like a bunch of the planets are squished slightly

[robust plover]

https://tenor.com/view/v1-ultrakill-v1-ultrakill-v1-plush-v1-plushie-gif-10744198944579940944

[quiet glen]

I reprocessed it I’m not sure why cuts out for a second

[quick cairn]

Awesome

[quiet glen]

Any recommendations on a decent 1.5x Barlow

I’m kinda broke though

Or is a 2x fine

I think 2x may be slightly over sampling

It goes like this right?

[quick cairn]

Correct

[quiet glen]

Ok

[quiet glen]

How do I calculate ideal sampling?

[quick cairn]

6-7 x pixel size = idea focal ratio

So if my pixel size is 2.9 then I do 6.5, so 6.5 x 2.9 =18.85, so since my native focal ratio is 5, I do 19/5 =3.8, so I use a 3x Barlow and an ADC, close enough

Use 6 in average conditions and 7 in perfect conditions

[woven kite]

im brainrotted

[rain mauve]

saturn

[elder venture]

5 is average, 6 is good and 7 is excellent

[shy jolt]

iss looks like that in stellarium?

[polar forge]

ISS will transit Jupiter on the 16th of May from here...

[low oar]

With premium yea

[native plume]

good luck & clear skies

[open nacelle]

im sending you clear skies
I will feel bad for you if u miss it XD

[low oar]

I have 4 decent upcoming opportunities

Fingers crossed

[quick cairn]

🤷🤷‍♀️🤷‍♂️

[somber stratus]

With OSC*

Mono there's not much point going above Wavelength/540nm * 5x pixel size, ish.

sorry, other way around. 540nm/wavelength * 5x pixel size.

[quick cairn]

Thanks for the info

[shy jolt]

thats cool

[quiet glen]

Is there any good 1.5x barlows out there

[woven kite]

ive seen the name siebert optics come up a lot for 1.5x barlow, its a bit expensive

[quiet glen]

How much do they cost,

[woven kite]

or i believe you can unscrew the barlow element from a 2x and screw it on the t mount making it around 1.5x

[woven kite]

https://www.siebertoptics.com/SiebertOptics-barlows.html

hrrm

quite a few selections

[quiet glen]

I see that I’m a bit stumped on which one I need since there are so many variants

[white prawn]

Why not 2x?

[quiet glen]

I think over sampling but not sure so I’m outside using my cheap 2x rn

I’m doing another timelapse

Is the celestron sky align thing worth getting?

[candid flare]

nope. plate solving is a thing

[quiet glen]

I’m alt as

It’s the base mount

[velvet island]

I think the formula is px_size x 6.5 / f_ratio by jupiter addict

For good seeing

[quiet glen]

Ok

Well crap the laptop just shut down on me

[white prawn]

I came about -><- close to getting that setup. Was ready to put the money down, was at the pawn shop for $1200.

Decent setup, too!

[white prawn]

Shut down or went to hibernate?

[quiet glen]

Not sure tbh it’s my dads work laptop so maybe one of the managers don’t like me using it

I think it is restarting

I don’t have the money for a laptop since I bought this scope

[white prawn]

Windows update maybe

[quiet glen]

It’s a mac book

I think I got at least 15ish videos

[white prawn]

Mac update maybe.

[quiet glen]

The loading bar is stuck

So probably an update

[white prawn]

Dang.

[quiet glen]

Ruining my timelapse

Update finished

[quick cairn]

Ethan, tom, do yall recommend just NIR for Saturn early Friday morning? Or maybe mostly nir and a 1 or 2 OSC to combine? I don’t know, also Ethan, what time were you imaging Saturn with that recent post, you’re Texas so 1 hour behind me

I’m North Carolina idk how that even works but apparently Austin is 1 hour behind me

I was thinking shoot for 6am?

[thick heron]

I've been recording both OSC and IR shots and combining them with wavelet composition. https://www.cloudynights.com/forums/topic/988913-nir-on-colour-wavelet-compositing-for-better-detail-with-proper-colour-in-poorer-seeing/

I put UTC on all my new image posts.

[quick cairn]

Thanks Ethan

[hybrid rain]

are jupiters rings visible anyhwere in the 0.0012-1mm infrared range?

mm not um btw

i figurred it out

yes you can

[quick cairn]

@flint siren can I see your best Saturn?

[quiet glen]

Is this over sampling I tried my best to edit it to look nice

[polar forge]

Jupiter so bright.

[silent mesa]

Jupiter reprocess - April 20th 2026

[rain mauve]

Cleannnnn

[quick cairn]

Nice bro

[quiet glen]

I hope my skies clear

[quick cairn]

I saw that too, sucks I can’t do it rn

[quick cairn]

Saturn will be attempted tmr morning at 5-6am

[low oar]

peak

[quiet glen]

It was cloudy for me unfortunately

[summer crypt]

how rare are 4 shadows?

[quick cairn]

When imaging in NIR, is there any difference from using raw and mono?

Color space

[hybrid rain]

use raw because mono8 sacrifices sharpness

[quick cairn]

Decades rare

[somber stratus]

Impossible actually.

You can only have 3 shadows.

Due to orbital resonance between the inner three. Io, Europa and Ganymede are never on the same side of their orbits simultaneously (which would be required for 4 shadows). Callisto is independent, so you can get 3 shadows, those being Callisto + 2/3 of the others.

[open nacelle]

yeah i saw this to on stelarium

[somber stratus]

For the same reason, you can only get a triple transit.

[open nacelle]

Doesnt neptune and pluto have a orbital resonance to?

next three shadows is in 2032 i think

[somber stratus]

correct

August sometime.

[summer crypt]

2 shadows?

[summer crypt]

what

[somber stratus]

Every week for a few weeks in a row, followed by a gap of several months.

[thick heron]

You can get all four shadows when these three and Callisto line up on the right side.
https://commons.wikimedia.org/wiki/File:Galilean_moon_Laplace_resonance_animation_2.gif

(It never happens)

[polar forge]

I need 2 hours of clear skies.

[velvet island]

Wanna trade skies? I'm not home and it's clear

[quick cairn]

Thanks for the correction 🙏 I was thinking of when Hubble got 3, but not 4, got mixed up. Was very tired this morning imaging Saturn

[polar forge]

Sure.

But I think you've senses the wrong skies 🙁

[quick cairn]

Seeing was so bad but it was low so thats fair

[winter moat]

Nice

[velvet island]

Honestly saturn looks good without details

[rugged knoll]

without details?

[hybrid rain]

would you use this scope

[velvet island]

Blurry

[low oar]

Peak bro

[robust plover]

What design is this???

[woven kite]

im hungry

[native plume]

hi hungry

[hybrid rain]

my own

[quick cairn]

Looks very long

[hybrid rain]

its actually really short

its about half a meter long

[quick cairn]

I meant focal ratio

[hybrid rain]

oh its f30

good for moon visual

no need for barlows

[summer crypt]

oi can you make one for 4 moons?

[low oar]

Settings recommendations for my attempt at this tomorrow?

[quick cairn]

Right so it’s long asf

[open nacelle]

Sick , probably 1600 shuter speed and 3200 iso or less if u want

[grave mountain]

not long

slow

very slow

[low oar]

Talking about planetary settings

[hybrid rain]

very short

like very very short

[open nacelle]

as i said slow

oh

[thick heron]

https://commons.wikimedia.org/wiki/File:Galilean_moons_around_Jupiter.gif

Okay well I guess it just won't play in Discord.

[woven kite]

never done a transit before but do you think the gain would be something extra low like 0.1-0.5

no no not gain ms

[low oar]

Yea

[woven kite]

https://app.astrobin.com/search?p=eJy7OaEktaLEVtXcSdXIqCwxpzQVSKsaOwLJzOJiVSODkqLEvOLMEpCokTOQzE0sSc4IqSxAqHP08YHL5uflVAanJhYlZ3jmhWSW5KQWO%2BaluKQWJxdlFpRk5ucVQ3SlJeYUp6qau6gVJKan2hqCqeDMKiDTwAAAJnguOQ%3D%3D&i=jauoah 0.5 freezes it nicely

ive been waiting for a transit for months duurrr

[low oar]

I have 4 decent opportunities this month but this is the best one as the ISS will be 57 angular size

[quiet glen]

How do I see when I have an lunar iss transit

[low oar]

ISS transit finder

Website

[summer crypt]

ah i still dont get why 4 shadows are impossible..

[thick heron]

The inner 3 never line up on one side.

[hybrid rain]

dont they have to at some point?

like once every way too long

[thick heron]

No, all three never meet at the same point because of their orbital resonance.

[hybrid rain]

awh :(

[quiet glen]

How often does a 2 or 3 transit happen

[summer crypt]

3 shadows are once in a decade and 2 are like 25 times a year

[quiet glen]

Oh gosh

I missed a double transit on Friday due to clouds 🙁

And there’s another one next week but it’s under the horizon

[rain mauve]

today's saturn

with 2x barlow

[low oar]

T minus 10 minutes hopefully I can capture something good

[quick cairn]

Guys look what’s happening RIGHT NOW

IS THIS RARE???

I just watched it on my 10”

[low oar]

My seeing was horrible for it

[robust plover]

I had zero clue this was happening

[quiet glen]

Woah I didn’t even know that could happen

How often does that occur

[quick cairn]

Rarely

[quiet glen]

I feel like that would be difficult to capture as well

[low oar]

Supposed to be more happening next year

I mean with good seeing it’s easily possible

[quiet glen]

Yea I’m fully clouded over

And it’s still light out

I take it that it already ended

[low oar]

Well it’s only like a 20 minute event

[quiet glen]

Maybe I can get it next time

[thick heron]

We'll be seeing many more of these for the next year as equinox approaches.

[low oar]

^

I mean just the next couple days there’s cool stuff

[hasty hull]

4deg altitude 🥀

[candid flare]

you red nerd ❤️

[hasty hull]

I think I first got in in 2023 and then they changed the role system around at some point and then I got it back somewhat recently

[quiet glen]

It looks like I’ll have clear skies for the one on the 24th what are some good setting for that and is it worth trying to do a timelapse of them approaching each other?

[low oar]

whats your gear?

[quick cairn]

Christopher go has caught a bunch of them

[quiet glen]

C9.25” asi662mc

And a uv/ir cut filter

[low oar]

just get as much data as you can

[quick cairn]

Christopher go caught Ganymede shadow on top of IO I think infront of Jupiter

[quick cairn]

Short videos, 30-45 seconds I’d say

Because you want the stacks to not blur the moons much but it depends on which moons

[low oar]

got a ss, im in bed and dont wanna research

[quiet glen]

Europa and Io

Should my gain be set to where I can barely see them or see them as white dots

[low oar]

yea cuz dont forget when you sharpen them it will brighten them

[quiet glen]

Ok

I’m excited for these passes I hope I won’t over expose it again

I hope the cloud cover changes

[quick cairn]

Pretty sure histogram should be 85-90%

Uhm omg?!?!

@thick heron I did the calculation with your relative location you could get this! Sadly tom couldn’t

I mean even in an animation would look sick in moderate seeing

[white prawn]

I presume that Rio wouldn't be able to get that level of detail on Io's surface? Or in better conditions than what I have now could I get something more than a correctly colored spot?

[quick cairn]

Who’s Rio?

I don’t think I could get that level of detail because of my aperture but the shadow movement I’m confident I could

I mean we are talking about 30 second videos

[quick cairn]

Io, Europa, and Ganymede In good seeing 10”

[white prawn]

Second photo, moon on lower L looks like Ganymede

[quick cairn]

Yeah it is

[white prawn]

I did this last year, was happy with what I got of Ganymede's surface. Not orbiter level detail, not the 14" level of detail, but just enough to say "oh, it's not a smudge, there's a little contrast there."

[quick cairn]

Last one is with some weird derotation but the details there none the less

[quick cairn]

Is the one on the right being eclipsed?

[white prawn]

I don't know tbh. I put the time in UTC, I didn't think to check it against Stellarium.

Would be cool if that was the case instead of the process somehow losing data

[quick cairn]

It’s probably an artifact

[white prawn]

😫

I kinda thought so. At least it's the right color.

Which when I processed the first photo that had Io in it, and noticed that it was the right color, I was really happy, I had been so used to seeing white dots when imaging with my DSLR.

[quick cairn]

I know the feeling

[woven kite]

what the hecky

i dont know if i could resolve that

[quiet glen]

What seeing would you rate this out of its the only timelapse I’ve done so far. I was able to get a moon for a bit

[quick cairn]

If you think about it resolving, the moons is already requiring a huge aperture, it’s more of resolving the fact that it’s cut off in half

Detecting the shadow moreover

[quick cairn]

Dude you have the moon disappearing that’s sick

[somber stratus]

There are countless of these events in 2026-7 season.

[polar forge]

Its gonna happen hopefully this night.

[open nacelle]

1 moon iss ?
Thats insane
WIsh you clear night

[polar forge]

Its gonna be clear. GRS is on the edge... but its worth it. Only 10 min drive again

[quick cairn]

Can any pro planet imager explain to me what this guy is saying because I’m way lost with big words

[low oar]

Good luck

[quick cairn]

This is interesting because the ISS takes up almost all of Jupiters surface area

I don’t think your simulation is taking into account the size of the ISS, either way super cool

[quick cairn]

His image I questioned

[low oar]

Well it only adds the shape of the ISS with stelarium premium

[quick cairn]

Gotcha, I have that @polar forge where you live

[low oar]

Drop the cords 😭

[quick cairn]

Haha

[low oar]

I gotta haul the c11 30 minutes away for this today

Gonna happen in 6 hours but I need no clouds 🙏

[quiet glen]

I don’t have any transits by the look of it

I would be happy to even get a good photo of the iss

[flint siren]

Brian Martin is back apparently

Yeah fourier analysis shows when the image has abused artificial details

But that's literally BM's style

[polar forge]

It does not but it gives an idea where its gonna be 😄

[teal sandal]

its bm's image?

[polar forge]

Netherlands

[thick heron]

He's back in the Facebook group he created after being banned from another one?

[flint siren]

Not sure. He could be back under a new name or someone has replicated perfectly his style.

[teal sandal]

i mean whoever this guy is he isnt even really trying?😭

[teal sandal]

omg

[flint siren]

Pretty sure it's him, and now telling he has a C11. Probably still using his 16" but changing setup in the dets to not be recognized.

[low oar]

Ball

🏀

[thick heron]

What is this? https://www.gpu-vision.fr/zbf_challenge.html

[velvet island]

The website looks really vibe coded

And what even is this

[thick heron]

What do you notice about this document about ZBF? https://www.gpu-vision.fr/ZBF_in_5_minutes.pdf

[velvet island]

How many hyphens are there

[thick heron]

There's absolutely no substance provided about the process. Here's the problem, this is the solution, just trust me bro.

Which one is it?

[winter moat]

WTF is this Shit 😭

[velvet island]

What are they trying to do though

[teal sandal]

what is going on?

brian martin processing ahh?

somebody put their data there

[hybrid rain]

they are saying the intensities of noise say your image has fake detail, i think its just from jpeg compression

[hybrid rain]

nou thanks

[hybrid rain]

wtf is this bs

[flint siren]

Absolutely not lol that image got destroyed by artificial sharpening

[hybrid rain]

jupiter addict used f tons of artificial sharpening?

[flint siren]

it's not his image

[hybrid rain]

oh

[hybrid rain]

i thought it was from this

but yeah, the other image looks so cooked

[hybrid rain]

this one

[somber stratus]

All he's talking about it the abundance of certain spatial frequencies in the data. If you apply wavelets of a certain "size", it'll produce a spike at that frequency. Of course if you completely overprocess with wavelets (to the point of destruction) the result becomes artificial. So even a small amount will have an artificial component. This is inherient with the fact blind deconvolution doesn't perfectly replicate the atmospheric blurring. Only stellar decon can reasonably achieve 'accurate' results in the scientific sense.

Either way, his image looks far more artificial and replicates AI, even if AI isn't necessarily involved.

[somber stratus]

Pending, and Brian Martin is an admin of this group. Probably won't get through lol.

[thick heron]

THE admin.

It's his own sandbox he made after getting kicked out of that one FB group.

[somber stratus]

It does look like a BM image. I wonder if this is what he has also used.

BM i mean.

the process is obviously flawed and produces unnatural results in any case.

[thick heron]

I feel like it's just a typical AI processed image with unnaturally sharp edges.

Don't think either do anything particularly special.

Well... One of them stole images, which is special in a bad way.

[somber stratus]

yup

[hybrid rain]

black mirror?

the show

idk what bm means

[winter moat]

Brain Martin

[hybrid rain]

ahhhh

[winter moat]

Nah Brian not Brain

[thick heron]

The Futuristic Hub guy that came in here a while back.

[winter moat]

Yee

[hybrid rain]

yea

[low oar]

Aka the best planetary photographer ever

🤫

[olive saddle]

oh god he's not even trying to hide it anymore 😭

[next fox]

I want to start planetary imaging with my 10” dob. Can anyone advise me on what camera/barlow to get for under £400

[quiet glen]

I know a lot of people use the player one Uranus c

But I use a more budget camera which is the asi662

And before buying a Barlow figure out good sampling using this formula: px_size x 6.5 / f_ratio

[velvet island]

Yep 662 is like the 585 but cropped

Actually 664 I think

They're all very similar

[somber stratus]

Futuristi chub

[quiet glen]

Should I buy this in the future

[velvet island]

If you plan on doing dso too then it's great

[quiet glen]

I didn’t realize it was good for both

[next fox]

Neither

What Barlow would that suit?

[quick cairn]

I sent this photo with my skepticism to show I’m not a random Joe, when he says my image that’s what he is referring to.

[hybrid rain]

grs has more detals than his grs

his is just like a solid puck

[quick cairn]

I wasn’t going to bother debating about things I don’t understand but I was confused what he meant by no storm detail because mine has center coloration changes

[hybrid rain]

yours has so much storm detail

[quick cairn]

Yeah I feel his data may of been better but whatever he did to it…

[hybrid rain]

maybe if he did lucky imaging and used wavelets he coulda got some info

[next fox]

I did this for the 585 camera and got 3.84? Is that the optimal Barlow

[low oar]

I love my Uranus C and M

[next fox]

which one is better

for me

[low oar]

Def the C

Cuz you don’t want a mono lol cus you would have to get a filter wheel and crap

[polar forge]

6.5 is a little optimistic? What about 5?

[low oar]

Right now I only use the Uranus m for lunar detail

[next fox]

I’ll try

[quiet glen]

I think I’ll get a Uranus c in the future

I believe I need a 1.5x Barlow but the sierbert optics guy never responded to my email

[polar forge]

what F ratio is ur scope?

[next fox]

4.9

[low oar]

Just invest in it early and save up for instead of buying a cheap one and then end up buying the Uranus c anyway

[polar forge]

That should put you at a 3x barlow.

[low oar]

That’s just more money down the drain if you plan on not using the old camera

Just save a little more and buy the Uranus c

That’s what I would do

[next fox]

Sounds good

With a 3x Barlow

[quiet glen]

If I ever buy a Uranus C is there a way to cool it so I can do dso with it as well

[quick cairn]

Yes

[quick cairn]

It doesn’t need to be cooled for dso tbh

But there is a cooled version that’s like a small % more expensive

[velvet island]

It's like 2x more expensive

[quick cairn]

I don’t think it is

[velvet island]

It's 1.5x more, but worth it for dso

[quick cairn]

If even yeha

less than 200$ more

[velvet island]

Yeah 1.5x

[quick cairn]

Little less but yeah

[velvet island]

Uncooled is 369

[quick cairn]

Before tax

[velvet island]

Alr lol

[quick cairn]

It doesn’t matter though it’s inconsequential basically 1.5

Work in 26 minutes

[velvet island]

Anyways, if you want to do a lot of deep space, you should go for the cooled version

[quiet glen]

I’m debating if I should save up for a newt and if I should try Nina over asi air

[velvet island]

NINA is definitely better than asiair

[woven kite]

this is probably a dumb question but is there any way to get venus' cloud structure during broad daylight?

[hybrid rain]

ir maybe idk

[woven kite]

venus is 20 degrees alt for me during twilight and that direction is trees

[woven kite]

ive looked for photos on astrobin if there were any daytime photos taken featuring cloud structures and couldnt find any

alsooo during the search i found your photo with giant watermark

[hybrid rain]

hell yeah

its my best photo yet

may even beat my tombaugh 4 image

[woven kite]

frrrr wonder why its not iotd

[quiet glen]

How much more complicated is it?

[velvet island]

It’s not complicated

But you’ll need the right drivers and everything

[quiet glen]

I’ll have to use rdc for it right

And buy a mini pc

[velvet island]

Yeah rdp

[quick cairn]

Move your setup

[quiet glen]

What mini pc would you recommend

[silent mesa]

Sun

[quick cairn]

Dope

[low oar]

raw frame!

[quiet glen]

Nice!

[quiet glen]

How come when I look at these on Stellarium they do not show up on the day? I set it to the exact time of the transit and the station is under the horizon

[low oar]

Did you put in the correct cords?

Also some of those are like a long way away

They don’t get accurate until like a week or less

[quiet glen]

Oh ok

Yea I dropped the cords on my house

[heavy mirage]

I like how the planet isn’t even horizontal with the thing on the top right. No effort whatsoever

[silent mesa]

Single stack

[quick cairn]

Awesome

[quiet glen]

Dads work laptop not allowed to have discord on it

[velvet island]

Buh

[quiet glen]

Working with what I have

[woven kite]

yeah!!!!

[woven kite]

any filters? im thinking of getting the inexpensive w47+uv/ir cut combo

[silent mesa]

Only used uv ir cut for this one

[woven kite]

nice cause it looks like you got a little cloud structure

[elder venture]

The Uranus C with no cooler is a lovely DSO camera on its own. It has a heatsink so you can theoretically add a peltier. How effective it will be is… questionable, but it’ll make a difference

I’d just recommend you to get the Uranus-C Pro or the ATR585C. The latter has customs and VAT included

[white prawn]

There is a pro version with a cooler.

[candid flare]

there is a cooler they sell for the uncooled it but to my knowledge is only good for introducing vibrations

[white prawn]

@quiet glen never mind then, just enjoy the uncooled product.

[hybrid rain]

the uramus c pro is different to the fan cooled uranus c

[elder venture]

It’s a fan

Made for Solar actually

[candid flare]

https://tenor.com/view/mili-canto-7-im-still-your-biggest-fan-mili-hero-limbus-company-gif-9057429289550163417

[quick cairn]

single

[winter moat]

Nice pic

[quick cairn]

Single stack

[polar forge]

Really nice! Had to get up early?

[somber stratus]

IR shot with OSC camera?

[quick cairn]

Yeah

I don’t have Uranus’s M yet

[quick cairn]

Yeah 4:30 to setup

I have a bad feeling my collimation was slightly off but I can’t totally tell

Seeing was very good transparency was average at best, either way well worth getting my lazy ass up

[polar forge]

Looks good.

[summer crypt]

its a bit squished? how low was is?

[shy jolt]

wait WHATT

[low oar]

Bros locked

[low oar]

Ngl bro I hope you take this as positive feedback but the single stack looked better in my opinion, hope this helped 👍

[rain mauve]

I wanna achieve this kind of detail

Mine sorta blurry because of 4 inch

I haven't tested my 4.5 inch, but I assume it has little improvement

[quiet glen]

I’m sure you can still get the rings though

[rain mauve]

yeah at least xD

today's jupiter

average seeing

[hybrid rain]

fov of the scope i will be building

[quick cairn]

This is also a single stack

Just different wavelengths

[hybrid rain]

do i do planetary when i build the greg

10 inch

[quick cairn]

Of

Ofc

[low oar]

Ahh ahh

[quick cairn]

Thats a higher wavelength so way less signal

the frames were 30ms

just testing around

[low oar]

Ah

Nice

[quiet glen]

I got data for a timelapse last night but now that I’ve stacked it I realize seeing was horrible

I got to the point where I stacked 5% and it was still a blob

[low oar]

Anyone know why in registax when you import something a little dim it auto cranks the exposure and contrast up to where you can’t change it

[quick cairn]

Best I can do atm

Using wavelength decomp with NIR 642 and UV/IR cut

5:32 AM ECT

[velvet island]

What aperture

[hybrid rain]

10"

[velvet island]

Woah

[hybrid rain]

f13.8

[velvet island]

Why so long instead of using a barlow

[hybrid rain]

because i want to use it for dso too

[velvet island]

Planetary nebulae :0

[hybrid rain]

that same galaxy with my 6"

i may have to put my 6" attached to it to platesolve yk

[velvet island]

Wow

[polar forge]

But wouldnt seeing ruin it?

[hybrid rain]

lucky imaging

also yeah the seeing will ruin it

i have some amazing periods tho

like sub arcsecond

[polar forge]

Thats what i gotta do with antenna galaxy 🙁

[polar forge]

Where u even live?

[hybrid rain]

uk

[low oar]

Quick test shot I put together, not the final though

[quick cairn]

Awesome

Perfect framing

[low oar]

Thanks

[polar forge]

Ohhh damn... and you get nice seeing? Im jealous

[polar forge]

https://tenor.com/view/bottle-of-water-saull-gif-26356875

[sharp ridge]

Idk why but is normal, just normalize in autostakkert

[quiet glen]

I have a chance to get an image of the Chinese space station tonight

[low oar]

What’s the angular size?

[summer crypt]

WOAH what galaxy is THAT

[winter moat]

NGC2857

[summer crypt]

no offense but i think you’ll just hinder yourself with such a big scope.. like bro i thought my fov was too small

[hybrid rain]

its for ir only

ir ony scope

no visible light

i want that insane reflectivity

[summer crypt]

oh oh i see

NIR or IR?

[hybrid rain]

full ir spectrum

[summer crypt]

[hybrid rain]

i want to eventually get a swir cam and a mwir can

[summer crypt]

can you run that for uranus? i wonder…

or Neptune

[summer crypt]

whats swir and mwir

short wave it and mid wave ir😭?

[hybrid rain]

yea!

[hybrid rain]

i hate the weird star overlay

[summer crypt]

OH SHI YOU CAN TOTALLY GO FOR URANUS

you gonna do it sometime right? 🥹

[hybrid rain]

it will be like 3 pixels big 😭

[summer crypt]

? excuse me?

lemme do some math

[hybrid rain]

it will be 2

[summer crypt]

what resolution is your cam

what res

?

[hybrid rain]

omg ur right

my righley limit is 0.55 not my ppx

[summer crypt]

girl tell me the res

🥹

[hybrid rain]

its 0.17 arcsec per pixel

[summer crypt]

x and y axis..

3840x2160?

[hybrid rain]

uranus is 3.42 arcsecs across

[hybrid rain]

yeah

[summer crypt]

alr 1 sec

[velvet island]

Smol scope

[hybrid rain]

i think its 20 px big

what matters is the arcsec per pixel

i think its diamater(in arcsecs)/arcsec ppx

[summer crypt]

allright so you fit 160 uranusees in your fov

10x16

(3840x2160)/160

your uranus will be 50k pixels

[hybrid rain]

THATS NOT ITS ACTUAL SIZE

[summer crypt]

HOLY SCAM

[hybrid rain]

thats why i mentioned this

and why i told you the arcsec per pixel

because

[hybrid rain]

do this and you get it

[summer crypt]

alr fill this out for me please

[hybrid rain]

its 20px big ;-;

trust mee

[summer crypt]

i wanna seeeeee

pls

lenght?

[velvet island]

I fit 25,623 in my fov

[hybrid rain]

i fit over 3

[summer crypt]

oi🥹

[hybrid rain]

no

[summer crypt]

[hybrid rain]

sorry its just more effort than its worth

[velvet island]

Do Tom's 24" f/4 with a 585

[summer crypt]

too lazy to calculate, lenght and apperture?

[velvet island]

96" focal length

[summer crypt]

MILIMETERS

[hybrid rain]

2400000000nm

[summer crypt]

nm

unc got a solid chance

[summer crypt]

i JUST saw that

unc on jwst level

[somber stratus]

Better one from October.

[elder venture]

Out of curiosity, did Damian manage to get uranus' rings with his C14 at some point?

ive only seen you do it

[somber stratus]

Martin Lewis has got them with his 18". Damian once got asymmetric brightening with the C14, but this was decades ago when the rings were edge-on and hence slightly easier to detect / omit circular artifacts.

DP

Pic Du Midi 1-meter.

But both use suboptimal filters, so the planetary glare is stronger than in my raws.

[elder venture]

i see

[somber stratus]

ML

A more raw version of my data from Oct. '25. Just sharpen and curves.

[summer crypt]

how long should my video of the moon be to have a print worthy image? 🥹

holy sharp

what is this stack bruh..

[hybrid rain]

woaa

[summer crypt]

what can you see visually through it?

[somber stratus]

Not the rings. Only the very brightest of the moons and a distinctly circular blue disk. Under good seeing you can spot the northern polar hood, which appears slightly brighter than the rest of the planet.

Tbh Saturn is the best in the 24 visually

[summer crypt]

bet its majestic... you got any pics of jupiter maybe? bet those are insane

[somber stratus]

probably the better few

[summer crypt]

oh my goddddddddddddddddddddddddddddddddddd

you can tell apart different cracks on ganymede

wait which one is ganymede

i meant europa sry

[somber stratus]

Ganymede is in both the 2nd and 3rd images. Europa in the first image.

^simulated views

[summer crypt]

🥹

yeah i know