Comets

[lavish lark]

points for creativity at least lol

id be willing to train you in it lol

[lavish lark]

oh yeah timezones

advanced tweakables in the main menu settings lets you have autostrut (good)

(for individual parts if you right click on them)

[wild sequoia]

g3 dieded??? ☢️

ok I am NOT getting that

[bright minnow]

@lavish lark shooting g3 tonight

I’ll see if I can get some data

And see how fast it’s dimming

[stuck knot]

Whaaat

[little moon]

Nucleus is a goner tho

[stuck knot]

Oh, it's dimming now

I have too much clouds anyway

[reef nimbus]

I don’t see it

Oh u didn’t get it damn

[stuck knot]

Yeah, nothing 😦

I think it was too low and clouds/atmosphere were in the way

[little moon]

Oof

Yea it's not possible from europe anymore

Only some canarians caught it barely

The nucleus vanishing rlly ruined it for us northerners

[stuck knot]

Right 😭

[lavish lark]

https://cdn.bsky.app/img/feed_fullsize/plain/did:plc:t6wgeecpnlop2owe4vm4hakp/bafkreigfnkhfd7eu72qogzs6cbhvgz7hqlwzbfprbevufy32h3j4m3aghu@jpeg holy tail

[little moon]

Nice

It looks like a corpse of West

[hoary basin]

Stupid clouds go away

[lavish lark]

wacky tail structure

[reef nimbus]

https://en.wikipedia.org/wiki/Great_Comet_of_1882

[bright minnow]

@lavish lark I need to manually stack my comet images

How do I do that?

[lavish lark]

dss didnt work?

no idea how to cleanly stack images manually

[bright minnow]

Couldn’t get it to detect a single star

[little moon]

Do stars show up in the fov?

[bright minnow]

nope

i got it stacked manualy tho

[little moon]

Ah ok

[bright minnow]

i need to try again tmr and get more integration there was too much noise

wayyyy to much

[delicate stone]

Looks like it was shot in the 70's. Still cool 🙂

[bright minnow]

What about now XD

[reef nimbus]

Holy frick

U shot this? Wtf

[bright minnow]

Yes

I live in the southern hemisphere

Remember

It’s easy to see it here

[reef nimbus]

Bro

Ik

But like

Holy shit

[bright minnow]

It ain’t that good

To much noise

[reef nimbus]

And I’m dying to get a blurry pic of its nucleus even

[bright minnow]

Not possible

The nucleus don’t exist anymore

XD

[reef nimbus]

Ik

[delicate stone]

Yeah thats wild!

[little moon]

All of the streamers coming into view

https://es-es.facebook.com/photo.php?fbid=1429038364740562

Prime is about rn
And next couple of days

[static canyon]

c/2023 a3

[steel widget]

Wow that beautiful, what's the angular size on that?

[little moon]

No clue

It should give some clues in the facebook

[hoary basin]

it has 4 faint tails coming off the core aswell which i didnt expect to see

[little moon]

O yeah those are the other streamers

I think this kind of structure was unheard of until this one comet

[static sage]

why must this be the one the northeners miss

[little moon]

Hale bopp was too OP

[little moon]

Btw

Striae in the striae lmao

(The fainter tails)

[iron tapir]

How to do you capture at day

[bright minnow]

What?

[little moon]

Too late

[iron tapir]

I know

[iron tapir]

I don't get clear whether anyway

Just wanted to know

[little moon]

O

[iron tapir]

How to do it@little moon

[little moon]

Just luck ig

[iron tapir]

My fist successful comet was comet a3

[hoary basin]

managed to get the mosaic to work, but had to clone stamp some of the join to make it smoother, idk why it was so bad

well i tried to atleast

[reef nimbus]

I got a dream that the comet was in my images

I feel like it’s my dream tryna tell me sum

I didn’t even check my subs tbh

[reef nimbus]

Got it in one of my subs (:

[bright minnow]

Haha

[reef nimbus]

What?

What’s funny

Ohh u mean the curtains, this is actually the comet shining on my ceiling

[neon viper]

Haters will say this is fake!

[reef nimbus]

Yes! Thank you

[hoary basin]

Got mosaic to work

On my pc it looks normal but phone it looks cooked

Maybe my screen is not calibrated

[lavish lark]

yeah no thats cooked

why is it purple

and like aggressively purple

[compact flare]

Maybe not 100 percent srgb

[hoary basin]

from the looks of it i got alot of good data with roki and 533, 3 pannel mosaic

no matter which way i turned the mount all the subs are trailed

[candid tulip]

thats crazy

i had my camera timelapsing on it just now, subs looked insane. although i cant look at them until tmrw morning since i put the camera onto another target for the night

[compact flare]

Sheesh that look good

[hoary basin]

i hope this new mosaic isnt to big for siril to process

[static sage]

i am insanely jealous

[hoary basin]

i hope this is better then last process, tis 533 and roki 3 pannel mosaic roughly 3-5 mins per pannel

[static sage]

gets real purple after some line

[hoary basin]

yeah stupid mosaic thingy made a sharp join line

spcc was correct for the first pannel then went on smoko for the other 2

untracked 25mm

[topaz fulcrum]

wth it's that big??

[lavish lark]

yeah

[hoary mauve]

@hoary basin Roki 135 or sigma 40 for comet tonight? FF sensor.

I’m thinking Roki

[static sage]

[bright minnow]

Man I love being Australian

[tawny elm]

Hide the pain Harold

[bright minnow]

how much int was that?

i got 7 min and no funny outer tails 😦

[hoary mauve]

You gotta DBE

[bright minnow]

thats like the think i suck the most at XD

[hoary mauve]

500 seconds

[bright minnow]

i got 450 seconds

what bortle and f/ ?

[hoary mauve]

Bortle probably 1-2 but the sun was around, F2.

[bright minnow]

yeah im b4-5 and f/4.5

ironic

[hoary mauve]

with the 40mm

like 2s int

[bright minnow]

nothin

[bright minnow]

@hoary mauve i got the extra tails!!!

[hoary mauve]

New discovery

[reef nimbus]

This is amazing

[iron tapir]

Its dead right

I heard you can see the tail now too

[hoary basin]

Way cleaner signal than me

My dslr sucks

[hoary basin]

looks super goofy

[little moon]

Sketch?

[bright minnow]

No?

[little moon]

Ah, it just looks sketch-like

Probably the walking noise

[bright minnow]

tail looks sad tonight

[hoary basin]

Barely naked eye visible for me tonight

[reef nimbus]

https://tenor.com/view/holy-moly-gif-2379897567703251318

[lavish lark]

yea looks like the cools time is about over

[hoary basin]

[bright minnow]

Wasp nest right where I was shooting

[lavish lark]

cool?

[bright minnow]

It’s on topic ig

I was shooting g3

[hoary basin]

looks pretty dim naked eye now might be dying

even in binoculars its not very good

[little moon]

It died a long time ago wdym

[hoary basin]

The tail wasn't really affected by it but now the tail is getting fainter

[lavish lark]

suprised it lasted this long tbh

[hoary basin]

Oh 100%

[little moon]

McNaught drawing

[brazen sonnet]

g3 died?

[lavish lark]

yeah, the tail is still visible photographically though

[brazen sonnet]

so we're witnessing like a real "ghost comet"?

[lavish lark]

yeah, like lovejoy in 2011 pretty much

[bright minnow]

See

No core

[brazen sonnet]

yeah

so what happened?

too close to sun?

[bright minnow]

got too close to the sun

[brazen sonnet]

sungrazer right?

[bright minnow]

not quite

[brazen sonnet]

weak comet

[bright minnow]

alot of factors

but yeah

[hoary basin]

it 100% has

[static sage]

that was like a while ago

[knotty crane]

C/2023 A3. Single exposure before it dipped.

[bright minnow]

And just like that

It’s over

[lavish lark]

its still imageable at like 12th mag lol

[wild sequoia]

oh is g3 12th mag now lol

[lavish lark]

oh wait bob stupid

no g3 is at 6th mag or so, a3 is at 12th

[wild sequoia]

ah

[wild sequoia]

wait a3 is at 12th???

how th

[lavish lark]

yeah

[wild sequoia]

it's been like 4 months

also 3 new super dim comets dropped

c 2025 a3, a4 and b1

[mild olive]

finally

[bright minnow]

WHAT?

[mild olive]

wdym

[reef nimbus]

Our dear @heady grove has found a comet cluster

Congratulate him

[heady grove]

bruh

dont make fun out of my filter issues

[reef nimbus]

Sorry vro

My bad

[orchid inlet]

[steel widget]

Any on the path for a spectacular sight? :D

Or still too early

[little moon]

Oof that one on the right looks promising

[wild sequoia]

iirc all three have passed perihelion by now

[steel widget]

:(

[wild sequoia]

they were also all 20+ mag

[mild olive]

that would be awesome

[lavish lark]

g3 aint doing the hottest anymore (from the 5th)

(not my image sourced from https://www.cloudynights.com/topic/949391-comet-2024-g3-atlas-new-daylight-comet/page-7 )

[lavish lark]

lemme check how comets are doing

a3 is 13th mag

[neon viper]

how's g3

[wild sequoia]

c 2025 a6 lemon looks promising, even though its early on so inaccurate, predictions are up to abt mag 9

which is a nice break from the rest of the 20th mag comets

[lavish lark]

10th magnitude or so, but so diffuse and faint nobody outside of b1 is seeing it lol

[proud dew]

any other cool snowballs to be looking out for?

[lavish lark]

c/2025 a6 in late october pretty much

[wild sequoia]

a3 part 2

https://cdn.discordapp.com/attachments/1276815123947847773/1333523663978364958/Screen_Recording_20250127_193835_YouTube_1-ezgif.com-optimize.gif

[proud dew]

What? Is it coming back around already?

[lavish lark]

no, a3 isnt coming back period actually

[wild sequoia]

I mean 2025 a6 might be the sequel to a3

[lavish lark]

it is not going to be the sequel

[wild sequoia]

that's why I said might

[lavish lark]

c/2025 a6 is probably getting to 9th-10th mag, maybe 7th mag if we are lucky

[lavish lark]

well at that point you can say nearly anything is the sequel

[wild sequoia]

in a sky where like 80% of the comets never get above like 18th mag, a 9th mag comet would be the sequel

[tall crane]

7th mag is nice!

[lavish lark]

that is my very optimistic max lol

[neon viper]

who knows it might get addicted to crack like s1 and g3 did

[lavish lark]

lol

[static sage]

how tf did i manage to post in the comet thread

[little moon]

And there is also that Wirrzchos comet

C/2024 E1 was it?

May be pretty decent

But as usual for southerners only

Pretty much

[brazen sonnet]

@bright minnow comet still here

[bright minnow]

Ok that’s a relief

[neon viper]

It can be done from the north, but yea the brightest extent is southern only

[proud dew]

what day/time is this setting? i can't find it

[proud dew]

nvm i found it

there is gonna be 3 comets on the sky in the same direction!

Wierzchos Mag < 7
141P-F/Machholz and 141P-E/Machholz Mag < 9
just out of frame on the left there is another Machholz at Mag > 9

i know those stellarium predicions leave a lot to be desired but that's some point of reference at least
at Mag 6-7 I belive it could be visible from a dark sky, definitly worth taking a peek with binocullars/telescope

(2026.02.23)

[lavish lark]

nope, 141p isnt appearing

stellarium's orbit for those comets is innacurate

and they are much brighter than they would be even if they were there

[proud dew]

well that's disapoinig

[lavish lark]

f was only seen once in the late 90s and probably doesnt exist anymore, same for e

and even if they did exist the orbits wouldnt be accurate anyhow

[proud dew]

oh maaan, that would have been co cool

will those bits and pieces atleast give us some meteor showers?

[lavish lark]

not really, doesnt intersect earths orbit all that closely

[hoary mauve]

New asteroid discovery
2025 YR1, Kuiper Belt object discovered yesterday. Current magnitude is 22.7. Diameter is between 15 and 20km.
This asteroid has a 99.6% chance of impacting earth 07/03/2034. It will impact about 100km south of Fiji.

[hoary basin]

That's already passed ?

[hoary mauve]

2034

[hoary basin]

I will 100% forget that bruh

[steel widget]

Oohh that's cool asf, wonder how much damage it might do 👀

[hoary mauve]

Should be a 2-3km high tsunami for most of the west US coast, China, Japan, Australia and South America. New Zealand will probably be destroyed by the heat wave before the tsunami arrives.

[static sage]

april fools, perchance

[orchid inlet]

Good call

[wanton steppe]

Finally

[lavish lark]

NEW COMET DROPPED

swan25f

[hoary basin]

Where mc naught

[lavish lark]

yall had mcnaught 4 months ago

[hoary basin]

That was a mid mc naught

[lavish lark]

ok some developments have come in, orbit that i based the first messages on is probably incorrect. im going to wait a few days for something better to come in though

[formal cliff]

That was behind the clouds mc naught

[lavish lark]

some more developments, a new orbit has come in which will probably be close enough to the actual one that its usabled

swan will be a 7th magnitude low elongation evening object for pretty much all of the world in late april-early may.

(18-19 degrees at perihelion)

right now it is 10th magnitude or so in the morning sky near Ra and Dec 23 16 16.136 +23 05 19.38

[wild sequoia]

midnaught

[lavish lark]

some swan 25F updates. first, it has a tail!. second its orbit has been dramatically refined to a useful point (if you ask i can now provide exact cords for any point in time and they will be correct enough to get in your fov). i would highly suggest taking a looksie if your interested in comets

[lavish lark]

swan 25f with the 533 and carbonstar 150. abosolute travesty of a first light, this image is horrible

[velvet cipher]

U have a carbonstar and a 533?

I thought u has a star adventurer and something

[velvet cipher]

That’s a nice rig

[lavish lark]

got an upgrade

[velvet cipher]

Congrats man

[reef nimbus]

Dude

It pains me

Why man

[lavish lark]

comet swan 25f has had a brightness increase to about 8th magnitude, still about as high as before

[static sage]

any idea how far across the sky it could span? seems like it will be a tiny one

[lavish lark]

span in size? right now people are getting like a degree long tail and thats only going to increase

a few degrees is plausible when its brightest

[static sage]

guess its something at least

[lavish lark]

bigger than most comets lol

[static sage]

spoiled by tsuchinshan

[knotty crane]

What's the mag on 25f today? How's Mr s
Swan looking?

[lavish lark]

7th or so, its also been officially named c/2025 f2

https://astro.vanbuitenen.nl/comet/2025F2 also has it

[knotty crane]

That's pretty good! Hope it keeps brightening. I plan to dedicate Saturday morning to a capture.

[knotty crane]

12 minutes of terrible data on SWAN25F

[compact mesa]

actually decent tail

[velvet cipher]

What equipment?

I’ll try to image swan on Monday morning with my 85mm lens

[knotty crane]

6" f/4 Newtonian, 294MC-Pro, uvir cut filter, 24x30s

[knotty crane]

SWAN25F is now listed in stelarium mobile

[proud dew]

are there filters that would make comet photography less affected by light pollution or the sun?
like the tail threre is mostly ice so water, is there like filter that passes only the wavelengths emmited by that water or something?

[hoary basin]

Nope

If those filters existed a cloud filter would also exist

[proud dew]

oh yea, that would be sick

tho you can go in to radio astronomy if you want to bypas the clouds

[hoary basin]

Radio for nerds

[hoary mauve]

NIR, perhaps.

but the sun is the biggest source of LP when imaging comets

[lavish lark]

yea theres swan filters

although they're mostly meant for visual

[reef nimbus]

hey

is there any predictions on swan 25f brightnes

[lavish lark]

4th-5th mag, its also in stellarium mobile now

[velvet cipher]

I’ll be imaging it on Monday morning with my 85mm lens

What should I expect?

It’s a bit smaller than andromeda rn right?

[lavish lark]

small green coma and a bit of tail, a degree or so at max

[velvet cipher]

Hm

Alright

I’ll try

[wise schooner]

https://www.msn.com/en-us/news/technology/how-to-see-the-newly-discovered-comet-swan25f-in-ohio-this-month-when-where-to-look/ar-AA1CLjFy?ocid=BingNewsSerp

[lavish lark]

would depends on bortle though

[hoary basin]

God damn this comet is absolutely terrible for my location

Doesn't even get above horizon in the daytime

[lavish lark]

yeah its northern only until after perihelion

[hoary basin]

Bout time u guyss got something

[lavish lark]

we also get c/2025 a6 lemmon

[hoary basin]

Is it a decent one ?

[lavish lark]

10th mag max so not really

but also its something and we are sorely lacking in that department

well at least until the end of the year

[reef nimbus]

Yea I heard, what’s the chance of it?

[lavish lark]

like the chance of it actually getting that bright?

id say fairly low but not out of the question

its mostly if it continues brightening

its held at the same brightness for a few days not and i dont trust it

[reef nimbus]

I see

[reef nimbus]

U mean if or is it actually hapen8ng rn?

[lavish lark]

?

[lavish lark]

that is actually happening in the world

[reef nimbus]

Awh dang it nvm it’s too low I think

[reef nimbus]

I mean, is it at the same brightness for a few days rn?

[lavish lark]

yes

it should not be doing that

[velvet cipher]

how's the comet doing?

im imaging it soon

[proud dew]

It dropped to mag 10 and stabilised at 9.3

[velvet cipher]

Hm, then I guess it would be better to image it at f3-4 with an 85mm lens instead of 5.6 at 300mm

Or am I wrong?

[proud dew]

I guess, but I don't know how bright is the tail, it may not be that long anymore so you might need more zoom to frame it nicely

[velvet cipher]

I think I would go with 85

My diy star tracker is not finished so 85mm would give me the ability to skimp on some accuracy

[past frigate]

Im gonna image it tomorrow morning with my Samyang 135mm f2 at f2.8.

[velvet cipher]

Terrible conditions but worth a try

I think I have fever

But I’m already here

So waiting til sunrise to go home

[velvet cipher]

Got about 30 mins of data

Going home now

[velvet cipher]

Also caught an asteroid, the final image would have both the comet and the asteroid which imo is pretty cool

[velvet cipher]

i mean thats something...

ill restack it cuz im 100% sure i can do better

[knotty crane]

Single 180s at 950mm f/7.5

[velvet cipher]

Oh it’s that small…

I shouldn’t have expected much from an 85mm lens lol

Won’t be able to image it with my mak prolly

[knotty crane]

Pretty small atm.

[lavish lark]

after the outburst its shrunk a bit

should (assuming it survives) brighten again

[knotty crane]

Kinda why I like to always try to capture even when less than ideal. So unpredictable. And it might be gone tomorrow.

[lavish lark]

c/2024 e1, 17th magnitude

[lavish lark]

actually processed

[lavish lark]

comet SWAN has probably disintegrated

[static sage]

already

[lavish lark]

it is at 0.55 or so au from the sun (0.33 perihelion) so not super far away

[brazen sonnet]

wher

[wild sequoia]

like s1 but worse

[steel widget]

Up in the sky I think

[brazen sonnet]

i mean wher in the pic

[lavish lark]

image above

[knotty crane]

I snapped SWAN25F this morning. Still there, although not as bright.

[brazen sonnet]

thas smol

like just barely a line

[lavish lark]

17th magnitude lol

6 inch scope isnt big enough for stuff like that

[brazen sonnet]

i heard comets do 30th mag at their furthest

wanna try and image that?

[lavish lark]

no not really

and they 100% get way fainter than that, just really really small and really really far away

[wild sequoia]

you should totally try to get hale bopp

[topaz fulcrum]

tbh i feel like this is smth Bob would do

not rn but later

everyone else doing 100 hour projects on galaxies and stuff and Bob is doing an old comet

would 100 hours even be enough for that its like mag 23

[wild sequoia]

hopefully

[lavish lark]

its actually fainter than what stellarium predicts due to losing all activity that far away

[wild sequoia]

the question is
would you do it

[tame minnow]

do u approve of this a3? i forgot i had this data (it was taken on the 28th of octomber so tail was small and comet was dim, also its only 30sec of int)

[lavish lark]

yea its a comet

[topaz fulcrum]

is it?

i thought it was a squirrel

[leaden gulch]

I thought it was my mother

[reef nimbus]

Squirrel fart poop eat the fart ew sniffer 65

[lavish lark]

shut the hell up man, #1160693147521777715 is the one serious damn thread i have

[topaz fulcrum]

angy bob

[steel widget]

https://tenor.com/view/family-guy-spongebob-brain-rot-godfather-gif-14526779029330258089

[lavish lark]

the bob crashout is something to behold

[topaz fulcrum]

https://tenor.com/view/family-guy-spongebob-brain-rot-godfather-gif-14526779029330258089

[neon viper]

Hi, I'm Spongebob

[little moon]

Oh wait I think I can see a weak outburst bubble in the shot

That’s Pretty neat

I forgot A3 had an outburst lol

[lavish lark]

did it?

[tame minnow]

what is it?

[lavish lark]

lemme check the baa comet archive

[little moon]

Like around The nucleus You can see what looks like a weak dust bubble

It looks just like the one I caught on 12P last year

[lavish lark]

im not entirely convinced its not just processing wonk

[tame minnow]

ye i do but how does it happen and is it rare or smth?

[little moon]

I mean, it doesn’t look processed to me-

[little moon]

Depends on the comet

[tame minnow]

on a3?

[little moon]

No, on what comet it is

Some are more explosive than others

[tame minnow]

ye, are ouutbursts rare on a3?

[lavish lark]

ok ive checked the baa image archive

nothing matches that structure

[tame minnow]

it was captured on the 27th of octomber

[lavish lark]

yep thats what i checked

and a few days before and after

[little moon]

Well It must be something related To software then

Here’s a real one on 12P

[lavish lark]

heres 2 days of 12p, the white inner circle on the first frame forms the short stubby tail on the 2nd

[lavish lark]

this is why you double check other data folks

[neon viper]

new komet

[proud dew]

Dat a question or a statement?

[neon viper]

statement

C/2025 J1

[proud dew]

Cool will it be a bright one?

[neon viper]

idk ask bob

[proud dew]

It's not going get very close to the sun so I'm guessing it's not gonna be much of anything

But on its way out it should be visible during the night so maybe there is a chance to get enough integration time to catch it

[lavish lark]

no

maximum of 18th magnitude from astro.vanbuitenen.nl

[next tendon]

Attention thread lurkers, your thread has been selected in the champion of thread comps. Go vote! #1369694419963613295 message

If ur voting comets, vote for the second one, the first one is a duplicate

[lavish lark]

oh yea i forgot about this earlier, but new comet got discovered, c/2025 K1 Atlas, 0.3 au perihelion (very close), technically gets to 8th magnitude in early october if it survives but it would both be 8 degrees from the sun and is likely to disintegrate beforehand. assuming it survives it would then whip around the sun and stay around 10th-11th mag until late november

northern comet

https://astro.vanbuitenen.nl/comet/2025K1 i cant wait for the press to make a big deal out of this one

[topaz fulcrum]

how often is there a normal person comet

[lavish lark]

every 5 years or so

naked eye (above mag 6) yearly, every 5 years theres something like a3, and every 10-20 theres a great comet

[wild sequoia]

wasn't a3 considered a great comet
at least I remember it being listed on Wikipedia as one

https://en.m.wikipedia.org/wiki/Great_comet

it is

go to bottom of list

g3 is there too???

[hoary basin]

Mc naught my beloved

can tell by the gum trees

[wild sequoia]

@lavish lark new comet just dropped
c 2025 k3 panstaars
sadly its perihelion is 3.46 AU, also not until Nov 2028
it'll also only get to mag 14/15

does have a super inclined orbit tho

105 deg

[lavish lark]

mag 14???? damn thats like, imagable

incredible

(please god theres been so few comets im getting hyped over something thats mag 14)

oh right c/2025 k2 gets to 8th mag in october

and c/2025 a6 gets to 10th mag also in october

[wild sequoia]

OOOOOO

might be able to catch thar

[lavish lark]

unfortunately its at 8 degrees away from the sun

brightest when actually visible is 9th-11th mag

[wild sequoia]

ouh

btw 24p is gonna reach mag 8 in late 2025/early 2026
it's in a great position too, 90 degrees away from the sun

[leaden gulch]

Might be the first time I image a comet telescopically

Well, unless I count afocal astrophotography

[proud dew]

My friend found a slow moving object on his MW time lapse
Do we have any small comets this way from June 27th?

[lavish lark]

nope, the brightest comet is 13th magnitude

(otherwise known as faint as balls)

[proud dew]

Could it be visible on long exposures? It's just a faint dot no tail or anything

[lavish lark]

nah not in phones, probably just a satellite or something i dunno

[proud dew]

But its slowly moving across the sky(almost with the stars) over a span of an hour or so

Satellites would zip right past

[steel widget]

Can u spawn in a bright one already 😒

[steel widget]

Planet maybe?

[proud dew]

On stellarium there are no planets there on the 26th(it was 26th not 27th as it turns out)

[steel widget]

The 9th planet 😏

[violet sun]

What about vesta?

[lavish lark]

yea i dont know what it is, but rest assured its not a comet

[wanton steppe]

https://minorplanetcenter.net/mpec/K25/K25N12.html

3I/ATLAS

[drowsy remnant]

damn
Im gonna have to image this comet

[velvet cipher]

with an agaroscope

[drowsy remnant]

In the next month i would get literally one photon from it

[velvet cipher]

buy 1000000000000000000000000 svbony 0.5x focal reducers and add some random sct meniscus and a prism idk

[drowsy remnant]

blud
Reducers make aragoscopes slower in terms of transmission

[velvet cipher]

lol i forgor

okay

okay

100000000000000000000 5x barlows

[drowsy remnant]

If i make it a kilometer long

[velvet cipher]

the cheapest ones

[velvet cipher]

if...

[drowsy remnant]

ill get 14000 photons
I a month

unfortunately my mount cant handle that size of payload so

[velvet cipher]

put it in space

[drowsy remnant]

if i could afford that id just buy a better mount

[velvet cipher]

something like a construction crane?

[drowsy remnant]

id probably keep the disk still and then have like a track for the cameras below it

id need to buy a few square kilometers of land in tge middle of nowhere

speaking of the aragoscope tho i got all the prints for the small scale test made

i just have to drill a few holes in the tube

[velvet cipher]

nice

[round folio]

Prob a balloon

[lavish lark]

just checked, this has been the worst few months for comets during the entire 21st century

[topaz fulcrum]

stop eating them

[tall crane]

There’s a new interstellar object tho, which hasn’t happened in a few years. Something g to be excited about

[topaz fulcrum]

how about an interstellar comet

[lavish lark]

good news it is a comet

[topaz fulcrum]

is it gonna do anything

[lavish lark]

gonna get up to like 11th mag or so, gonna pass somewhat close to mars but we dont live there

[tall crane]

Will it be visible at all at closest approach?

At night

[lavish lark]

not naked eye

[tall crane]

Well I’d like to photograph it, but I’m concerned that it won’t be visible at night

[lavish lark]

it'l be visible, its also in stellarium if you add it

[tall crane]

Okay cool

[delicate stone]

How bout C2025 K1? Any expectation ?

[lavish lark]

i give it good odds of disintegrating tbh, nor does it have a particularly good approach (8 degrees from the sun at perihelion), only 11h mag or so post perihelion if it survives

[delicate stone]

So N1 will be a better candidate?

[lavish lark]

probably, although id say out of the newly discovered ones that a6 is the best

[delicate stone]

Will it be visible in 2026?

[lavish lark]

october this year, 10th mag or so

[lavish lark]

c/2025 k1 is 12th magnitude, not my image

[compact mesa]

I mean it's something at least

[pallid lichen]

Comets are birds and birds aren't real

[wanton steppe]

I will shoot it next clear night

[velvet cipher]

Is it gonna be worth imaging it with a 300mm lens

[velvet cipher]

What fl is there

[lavish lark]

dont know but its probably quite a bit

[velvet cipher]

I want to get a few hrs on it is it possible considering how fast it is

[lavish lark]

should at least have a tail

[lavish lark]

movement of k1 over a few minutes

[lavish lark]

comet C/2025 A6 lemmon is now 11th magnitude, i have no clue what its doing but it sure is doing it!

[little moon]

That looks like the sublimation burst of a dynamically old comet

[lavish lark]

im fearing that its disintegrating lol

[little moon]

This guy works on the field btw

But yea that comet screams dynamically old

The appearance and everything, the moment where the burst happened, it all checks out from our research

[lavish lark]

ill see what it does before getting my hopes up

[little moon]

Still not 100% sure as always

But yea

[leaden gulch]

Any potential for it to get near naked eye visibility?

[little moon]

Right now there is a slim chance but still better to wait

[lavish lark]

maybe? probably not, and at best its like 4th mag

[leaden gulch]

Eh, still a good comet for imaging if it gets that bright

[compact mesa]

Only thing we can do is wait

[lavish lark]

bump

[topaz fulcrum]

bump when something happens

[lavish lark]

sent a link to this channel to a guy and then he said it didn't work so i was gonna say to just go here the normal way, but in the time it took to say bump he said "oh it was just a bug"

thats y i said bump

[topaz fulcrum]

hotdog

[pallid lichen]

It's brighter now

Waiting for a bright comet to actually be a decent way above the horizon

[lavish lark]

a6, 17m exposure

[lavish lark]

k1, 25m

[pallid lichen]

I need to find myself a comet

[pallid lichen]

Not like a new one but an old one

The main issue is that the fov of my yard is complete garbage

The visible range is literally Cassiopeia, Vega and half of UMa

[proud dew]

I have it literally the same, for comets i have a spot on a hill, there are some trees and west from there there is a glare from the city but it's manageable

But normal astrophotography Im limited to my narrow sky view

[compact mesa]

k1 looks better imo

not image wise but in general

[wanton steppe]

C/2025a6 Lemmon
24min
130pds
Canon 550D

[lavish lark]

NEW COMET DROPPED, 7.5th mag very low equatorial evening skies

[lavish lark]

visible rn

[tall crane]

What’s its ID?

[lavish lark]

SWAN25B

[lavish lark]

i actually did an accidental independent discovery of it a few hours before it was published, it was a visible thing in stereo data

[delicate stone]

Ur in space?

[lavish lark]

stereo spacecraft data lol

[wanton steppe]

2 new comets in 1 day! Potentially bright comet in April 2026

[leaden gulch]

next big Kreutz sungrazer when

[steel widget]

Ts better be visible from the northern hemisphere

[compact mesa]

please

[lavish lark]

not really

like its visible but not when its brightest

nor is it very high

this comet sucks lol

[steel widget]

Boooooo

[bright minnow]

Southern hemisphere pog

[lavish lark]

its only marginally brighter when its in the southern hem lol

this comet sucks

[lavish lark]

and its just as low

[delicate stone]

Whats any good for the northern? Still k1?

[little moon]

C/2025 A6

Potential 4th mag in late october

[delicate stone]

Thanks!

[little moon]

Yw

[lavish lark]

c/2025 a6 is a good comet for an idea ive had for a while, (have a few people in different places image a comet so i could make an animation of the ion tail moving)

[lavish lark]

because its high up and bright (several hours of it being above the horizon when its 6th mag or so)

[round folio]

how big will the tail be

[lavish lark]

few degrees at the time i mentioned (photographically), max is like 20 when its brightest (photgraphically, wont be very long naked eye, or with a scope probably)

[round folio]

noo, so i cant help with my small fov

[lavish lark]

arent you untracked anyways

[round folio]

yea, but that dont matter

[lavish lark]

actually i guess for the inner coma it wouldn't matter much

[round folio]

what was the biggest comet coma ever from earth

[lavish lark]

statistically theres probably been one thats enveloped earth but generally its a few degrees max

like 1-2

[round folio]

so they could have imaged the surface

[lavish lark]

i mean probably, but it certainly hasnt been within modern human history so whatev

[little moon]

Ah ur right actually

[tall crane]

Bob 😠

[lavish lark]

?

[proud dew]

cool site for comet enjoyers, lots of usefull info in a very easy to read format https://theskylive.com/comets

[lavish lark]

magnitude data is inaccurate, aerith.net and astro.vanbuitenen.nl are better

cobs.si is also good

[compact mesa]

Has Vanbuitenen had issues for someone here as well?

[little moon]

Yessir

That website has been whack for like a week

[compact mesa]

I guess theskylive it is then

Like I thought my internet was messing with me

[little moon]

Don't use that either

Mag estimates are shit and they have horrible bots in x

Just try cobs.si

It's not nearly as intuitive but they have the light curves

[compact mesa]

Aight

[tall crane]

#1160693147521777715 message so negative

[compact mesa]

ikr

[lavish lark]

theres like a week where its brighter than 11th mag and actually above the horizon lol

it never gets high at all

[compact mesa]

I wonder how C/2025 A6 will do

[lavish lark]

same

3rd-5th probably

[compact mesa]

Maybe it is Tsuchinsan Atlas 2.0

[lavish lark]

no

[compact mesa]

unlikely, I know but still decent

[compact mesa]

cobs says its peaking at around 2.2

we'll see

[lavish lark]

c/2025 a6 is being cool now (NOT MY IMAGE)

[static sage]

any idea what fl that was at?

[lavish lark]

not really, probably like 400 idk

[lavish lark]

image has a 3 degree fov

[static sage]

only rises to like 4deg for me as well

[compact mesa]

Im going to image that for sure

[lavish lark]

wait crap ive gotten comets confused, the comet your thinking of (c/2025 r2 SWAN) doesnt rise for crap, the comet posted here (c/2025 a6 lemmon) rises high for northerners

[compact mesa]

It's like circumpolar atm

[lavish lark]

accidentally posted SWAN s data to astrometry lemme check for a6

wait no nvm that mvm

bob is confused today

i was right that first time

[compact mesa]

why does it look different to the one in #💬-general-chat ? now you've confused me

[static sage]

[lavish lark]

theres 2 comets, general chat comet is SWAN

[lavish lark]

THIS IS A6

THIS IS SWAN

[compact mesa]

https://tenor.com/view/why-monkey-what-huh-confused-gif-3006908007927048834

[lavish lark]

swan sucks for northerners, a6 is good for northeners

[lavish lark]

same

[compact mesa]

what about K1?

[lavish lark]

k1 is 11th mag and gone for northeners

lemme check when it'll come back

comets back mid to late october, it mightve disintrgrated by then so it might just be gone outright but otherwise it'll be 10th mag or so

i think i need to start making the weekly comet updates again

I'll do that when i get home from education

[little moon]

For now

[little moon]

Probably will sustain the brightness according to many sources in case it survives

[weak lily]

need to pay attention to here now

[static sage]

nvm it gets to over 30 degrees but at like 5am

thats fun

[compact mesa]

Yeah its decent

[pallid lichen]

Lemmon sets 10 minutes before sunset

[lavish lark]

well yea its a morning comet

eventually it'll be an evening comet but its not one rn

[topaz fulcrum]

coimet

[lavish lark]

WEEKLY COMET UPDATE, c/2025 a6 lemmon: moves this much in the sky, displaying a faint but likely several degree ion tail. brightens from 8th mag to 7.3rd mag, northern morning comet. by the end of the week it rises above 5 degrees by 1:30am and 20 degees by 3:30 am. continues rising, by end of astrodark its 40 degrees high (assumed 45 degrees north, will change depending on where you are)

[topaz fulcrum]

only took you 4 tries

[lavish lark]

meanie

C/2025 R2 SWAN. equator-southern only comet, bright ion tail several degrees long along with faint dust tail, stays 7th magnitude. sets 2 and a bit hours after sunset for sydney australia. 13 degrees high at astrodark. while this comet will eventually be visible in the north its not for a while

[topaz fulcrum]

ew

disgusting thingy in your image

[lavish lark]

has a closeish approach with 11th mag C/2025 K1 today and for the next few days

C/2024 K1, southern evening comet, last week to really have a chance to see it, moves towards the sun, barely being 4 degrees above the horizon at astrodark by the end of the week. brightens from 10th mag to 9.5th mag

3I ATLAS (the interstellar one): 14th magnitude or so, brightens to 13.5. another southern evening comet

[proud dew]

two comets that close? fun

[weak lily]

@lavish lark whens the best view for us northeast?

[lavish lark]

for which comet?

[weak lily]

any at all ngl

i miss seeing comets that one last year was so pretty

[lavish lark]

probably october 24th or so for c/2025 a6, last day without moon. depending on brightness at the time it'l either be naked eye or an easy binocular object (depending on bortle)

[little moon]

Nope

It outbursted to mag 12

[delicate stone]

Ugh have to get out of bed at 4 am to image it this week. In October it will be bright af some time after sunset 🙂

[static sage]

screenshots dammit

[versed jasper]

@lavish lark does A6 show for you in stellarium?

[lavish lark]

yea

what version are you using?

[versed jasper]

shit i just closed the pc app

24.2

[lavish lark]

you can either add it manually or just update

[versed jasper]

thank you

[bright minnow]

swans looking a little dim tonight

[hoary basin]

oh i forgot about that

[little moon]

Oof, teardrop coma is back

[little moon]

Still R2?

[bright minnow]

yeah

[little moon]

Hm

We'll have to keep an eye on it

Still I hope A6 gets some more surveying too

[bright minnow]

does this crop look better?

[little moon]

Ye

[bright minnow]

ok

that makes 3 comets ive shot

technicly 4 but i dont wanna talk abt that one

[little moon]

Hm?

[compact mesa]

we'll never know

[bright minnow]

its horible

from when i first started astro

[compact mesa]

this is my first

[bright minnow]

is that tsushinchan-atlas?

[compact mesa]

yup

[bright minnow]

heres what i got

[bright minnow]

honetly it was a sick comet

the best ive seen

[compact mesa]

I've seen it naked eye

[bright minnow]

you shoulda seen it in the southern hemisphere

it was 2x as bright as it was when it was visble for you guys

[compact mesa]

Southern hemisphere was clearly in an advantage for sure

[bright minnow]

In the southern hemisphere

This is how bright it was

Single sub. Btw

4 seconds I think it was

[compact mesa]

I saw the pics coming from australia and so on and I was really damn impressed and jealous at the same time

[bright minnow]

i will never get over how bright it was

[compact mesa]

And then there was the sungrazer

*Kreutz-Sungrazer

[bright minnow]

what one

the last one i saw was sick

[tawny elm]

Rip that

[compact mesa]

One disintegrated before that and the other after

[hoary basin]

loved that comet

G3 was better tho

it was like A3, but longer tail and easier to image

[compact mesa]

that tail on G3 was something

[hoary basin]

ill try find my image 1s

[compact mesa]

I remember you had a good one

[hoary basin]

https://cdn.discordapp.com/attachments/544305081009438720/1332846967788933192/Widefield_Comet.png?ex=68d1d478&is=68d082f8&hm=3448b51b35f8e665d71cee968a459858aafade9e59e83ae50b14ad831dd9789f&
https://cdn.discordapp.com/attachments/544305081009438720/1332846969667977256/C-2024G3_ATLAS_3_Pannel_Mosaic.png?ex=68d1d478&is=68d082f8&hm=818569589d09a1e6f93dcd8c041485b1c7b81cdda6acad0a6f2123368e79d90e&

i was pretty shit at processing it

maybe i should reprocess it

the top photo is like 10s exposure i think

[compact mesa]

Top one is a little funky because of the trees

[hoary basin]

yeah i couldnt be bothered to fix it

[little moon]

Yea

[little moon]

For me it was neowise back in 2020

[bright minnow]

i never got a good img od it

[little moon]

Saw it from a bortle 2, very clean view

I could see ~15° of tail naked eye

[bright minnow]

neowise was worse then a3

from austalia

[little moon]

Depends

In my case A3 was completely ruined bcs of the moon

[bright minnow]

southern hemisphere pog

new moon

[little moon]

Half of earth will now want to break your legs

[bright minnow]

my left leg is alredy broken

[little moon]

Yall have been spoiled with comets for the past century excluding the 90s

[little moon]

º

[bright minnow]

that fine tho

still got another one ripe for the breaking

[little moon]

Good

[bright minnow]

i realy struggeld to get a photo of G3 tho

[little moon]

But yea like 80% of great comets have been best from the south

I imaged it during the day but alas

[bright minnow]

my only good photo of it was rather mid

[little moon]

My only actually good image of any comet was A3 widefield

[bright minnow]

G3

that wobling in the dust isnt real detail

thats the walking noise

[little moon]

:/

[bright minnow]

Here is a super close up

Of G3

Complete with its lack of nucleus

[pallid lichen]

Tf is female water snake

[little moon]

At least I imaged it pre-disintegration 🥲

A3 close-up

Tbh I don't like the image, it looks weird

[bright minnow]

I also don’t like my A3 close up

[static sage]

hm

might try it tonight if weather holds

[compact mesa]

Michael Jager always manages to impress me

[tall crane]

30s lum with my setup (not an 11" rasa lol)

[orchid inlet]

Whats the name of the new comet?

I might give it a try with my phone and the 6” newt

[compact mesa]

C/2025 A6 (Lemmon)

[lavish lark]

already been done

[static sage]

the tail on lemmon is so faint

[tall crane]

I’ll do 60s on it tonight off it’s clear and see if I can bring it out at all

[static sage]

i got like 50min with my old dslr and can barely see the tail

[lavish lark]

c/2024 e1

[lavish lark]

c/2025 a6 lemmon

[bright minnow]

c/2025 R2 swan

looking no so healthy tonight

[orchid inlet]

Oh thats small

[tall crane]

comet

a6

tail is pretty long tho

[proud dew]

There's too many comets Im lost

Are there any bright ones visible from latitude ~52N

[lavish lark]

c/2025 A6 lemmon

[tall crane]

the one i photographed above, c/2025 a6

this is like 30x30s lrgb

[lavish lark]

bruh

mine was 60x120s and i got like 1/5th of the signal

pay and bortle to win smh

[proud dew]

not for me i guess

[lavish lark]

what dat graph mean?

[proud dew]

my horisont and the path the comet take over it during the night

from NINA

[lavish lark]

rip

[steel widget]

Surely you can go on top of a hill or such for a night?

[orchid inlet]

Ill give it a try too in october maybe

[tall crane]

with stars (kinda bad processing tho)

[proud dew]

Normally I would but at this moment I don't really have time to go somewhere and spend time I gotta be doing other stuff

[compact mesa]

Why do the stars have a tail as well?

[tall crane]

The tracked image of the comet had some residual stars in it

[compact mesa]

gotcha

[lavish lark]

a6 again

[compact mesa]

Is that a galaxy in the background?

[lavish lark]

no, just a star getting smeared out

[compact mesa]

ah

[static sage]

this gonna take a while

[steel widget]

quick shot at a6 last night

[distant crown]

@lavish lark will I be able to image the new comet in late october?

[lavish lark]

yea

[distant crown]

Nice

[tall crane]

little brighter now

[rocky ermine]

Are both the comets really below 6th magnitude?

[lavish lark]

yep

barely

both are hovering at 6th

[rocky ermine]

Damn that's nice
Thanks I will try and observe them visually

[delicate stone]

Yeah can confirm that A6 is bright 🙂‍↔️

[compact mesa]

I may have to go out one morning

[balmy gale]

is there something to track the trajectory of a6 on the night sky? to plane something like the intersection with the little pinwheel

[compact mesa]

You should be able to track the trajectory on stellarium. While stellarium doesnt get the Magnitude right, it does get the trajectory right

[balmy gale]

oh cool

[delicate stone]

28 MIN before clouds rolled in my last moment and attempt to capture it before its gone and won't come back in a lifetime.

[compact mesa]

is that uhhh SWAN 25B?

[compact mesa]

btw if your fov allows that, you can go for it on wednesday since it will pass by M94

[delicate stone]

A6

[balmy gale]

unfort no

[stuck knot]

I just learned about C/2025 A6, that seems to be well visible from norhern hemisphere, cool!

Now I just need some not cloudy night... 😄

[stuck knot]

also it's best at 5 am, not sure if I want to wake up for that 😄

[lavish lark]

i woke up at 3am several days in a row last week to image it lol

[stuck knot]

Very nice! Was it a success? 😄

[balmy gale]

im sad i waited this long lol its only good for like 30 minutes before dawn for me

[stuck knot]

It's way too cloudy here in czechia

There's a slight chance on wednesday

morning

[wild sequoia]

same

being assaulted by fog in the UK rn

[stuck knot]

UK, that's very hard level of astronomy

RIP

[wild sequoia]

not even joking the whole country is covered by clouds

to top it off by the time this cloud block moves away, the next one pushes right through

[leaden gulch]

We seem to also be screwed for the next week in Wisconsin

Actually hold up maybe tonight can work

[hoary basin]

Pretty small country so easy to completely cover

[wild sequoia]

but you see
it's always covered

which is unusual but normal for us

[balmy gale]

is that vertical smudge in the top left below the tail an artifact

i only noticed it after stacking the comet aligned subs

[lavish lark]

probably

[round folio]

whats your setup

[balmy gale]

75/400 frac, 533mc pro, am3

my guiding was genuinely abhorrent during this

like 1.4"

[lavish lark]

mmmmmm yummy denoise

[balmy gale]

what

[balmy gale]

is it worth going back and taking a better star field when its higher in the sky

it seems sparse

[night otter]

swan 7x60 sec test run

[wild sequoia]

heh comet 🍋

[stuck knot]

Nice one!

[steel widget]

@lavish lark mr comet guy whats ur go to source of comet magnitude info?

[lavish lark]

https://cobs.si/

and https://astro.vanbuitenen.nl/

both are good and provide the same numbers

[steel widget]

holy mag 4.8

alr tyy

[wild sequoia]

WHY MUST IT BE CLOUDY WHEN LEMON IS OUT

[bright minnow]

Why must it not be visible for once

Southern hemisphere never gets any good comets

[lavish lark]

just had swan spoiled brats

[bright minnow]

Swan was mid

[steel widget]

despite phd2 killing itself mid session, the comet shines brighter

[static sage]

what gear?

[steel widget]

askar 71f + canon 550d

60 sec subs

[static sage]

how much data

[steel widget]

97* 60 sec so like 1.6 hours

[static sage]

[steel widget]

Really quick test shoot with 5.6 min of 8 sec subs @ 55mm FL

mid bortle 6 too ^^

[proud dew]

I dreamed a cool thing you can do to comet data to hopefully extract if and possibly how the rock Is revolving

But I can't see lemon or swan so I'd like to ask you guys for a lil favour, I need a data set(not stacked) of any comet where you can see the tail on the subframes
And about 60frames would be golden but really anything you have might do

I planned on taking luminance frames of the lemon comet but I got trees in the way and I can't go out this weekend(my only cloudless night this month probably) so I need someone elses data

[steel widget]

How zoomed in do you need the data to be? I can send you my last night's data of 97x 60sec subs

[proud dew]

More zoom = better, wide field shots will be pretty useless but if you used a telescope than it would probably be great

[steel widget]

hows this FOV?

#1160693147521777715 message

[proud dew]

This is great!

[steel widget]

https://we.tl/t-MnobEHsYCo

[steel widget]

Comet is approaching the small NGC 5005 galaxy

totally f'ed up the framing lmao

[proud dew]

I'll report back with results

[night otter]

swan and eagle today

[balmy gale]

i cant find swam in stellarium anymore

it used to be there

[lavish lark]

if you start stellarium without internet it does thay

[balmy gale]

nah i had internet at multiple locations

i had to go to the solar system plugin and download comet data

[balmy gale]

amazing callout

i have no eagle data so ill archive this for next year when its higher

[lavish lark]

i got an hour of swan data but didn't notice that eagle was nearby :((

did notice about 5m ago tho

[balmy gale]

i cant tell which way the tail is ointing?

[balmy gale]

anyone know where the tail is pointing here

[lavish lark]

top left

[balmy gale]

dammi

[lavish lark]

what has thou done

[balmy gale]

i thought it was the other way

gotta change framing and lose some time

[lavish lark]

rip

[balmy gale]

i shiuld still get at least an he

hour

im at f4 so its prolly fine

[lavish lark]

thats why i tend to do one really long frame to see the tail

[delicate stone]

Any comets coming up for january or so?

[balmy gale]

they arent detected this early

[delicate stone]

Some existing ones that may brighten

[balmy gale]

yeah i dont think they last that long near our detection limit

wait im lowkey tripping for some reason i thought it was earlier in the year than oct

time flies, also dont trust me

[delicate stone]

🥸