novel agate
Anyone willing to spend a couple of minutes processing my (absolute) beginner data to see what is attainable when you know what you're doing? So far it's mainly trial and error for me, and I was wondering what is attainable and how far off I am with my own tries.
Just a disclaimer; the data will be terrible by most of yours standards. There are tracking errors, it's terribly noisy, but hey, it's a start!
https://filesender.surf.nl/?s=download&token=199fabf6-d629-4039-94f2-27e355d83396
vagrant vortex
suprisingly good result after seeing the raw!
craggy grove
Anyone willing to spend a couple of minutes processing my (absolute) beginner da...
nahh man tbh this is lowk good
idk why is the horse hunching tho 😭
novel agate
I dont know what you mean exactly but the field of view might be tilted?
novel agate
I used the preprocessing option without drizzle. What would the drizzle do?
novel agate
suprisingly good result after seeing the raw!
Pretty cool result already, awesome! Is there any way to get rid of more of the purple and green noise? Or is some of it supposed to be there?
craggy grove
I used the preprocessing option without drizzle. What would the drizzle do?
depends on what cam ur using
and ur focal lenght
novel agate
It was shot using a nikon d3200 (crop sensor) and a 300mm lens at f5.6
craggy grove
u can drizzle it
it would help
these shots are untracked or tracked?
if its untracked then yea u can drizzle too
novel agate
They are tracked (30 sec subs), but they all have some tracking error. I have to eyeball my polar alignment
novel agate
u can drizzle it
Ill have a go at that as well!
craggy grove
They are tracked (30 sec subs), but they all have some tracking error. I have to...
ohh
well the condition for drizzles are that ur shots have to be like dithered which is basically when u move the cam a bit from one shot to other so that ur sensor defects dont show up
the other is to have undersampled data
it has a formula but basically when its like 1.5-2+ arcsec/px u can drizzle
it would bring out like more resolution
the thing is that without dithering drizzle would jst be making stuff up lmao
bro it lowk looks like snakehead for some reason 😭
vagrant vortex
it has a formula but basically when its like 1.5-2+ arcsec/px u can drizzle
only if the data is sharp enough... this absolutely isn't, so drizzle would just worsen SNR with no benefit
like it's almost 9 pixels fwhm, so if anything you should really consider binning. Maybe even 3x
craggy grove
only if the data is sharp enough... this absolutely isn't, so drizzle would just...
yea 💔
craggy grove
like it's almost 9 pixels fwhm, so if anything you should really consider binnin...
new terms to me lol
vagrant vortex
binning is basically the opposite of dirzzling. you just merge 2x2 or 3x3 pixels into one to increase SNR
novel agate
like it's almost 9 pixels fwhm, so if anything you should really consider binnin...
So how do I bin my snakehead nebula? 😄
vagrant vortex
So how do I bin my snakehead nebula? 😄
depends on the software you're using
craggy grove
i am not good with this nebula bro 😭
idk why my whole image blows up when i stretch it
vagrant vortex
no way that's the same data???
novel agate
i am not good with this nebula bro 😭
Holy shit, this is the same fit file?
craggy grove
no way that's the same data???
ye
but like
looking closely
the stars are all blown up
the flame is cooked
vagrant vortex
is it binned?
craggy grove
is it binned?
nah idk how to do that lol
vagrant vortex
did you use heavy AI noise removal or something? surely all those details in the bacground aren't actually real
craggy grove
did you use heavy AI noise removal or something? surely all those details in the...
yea fr
😭
like
2 max strenght graxpert
novel agate
In any case, thanks to you both for having a look at it and playing around! I think I will have to start by finding a better way to polar align my mount 🙂
Also, what would be other feasible targets when I can only expect similar quality data? So far ive only tried this, m31 and m42.
craggy grove
In any case, thanks to you both for having a look at it and playing around! I th...
u should try M45
pleiades
and rosette too maybe
also like try to get the polar alignment good enough to like take 120s subs with no trailing or minimal trailing
and also get this app called polar clock
it shows where to put the polar star in ur polar scope at what time
like this
vagrant vortex
In any case, thanks to you both for having a look at it and playing around! I th...
heart and soul is also great
novel agate
it shows where to put the polar star in ur polar scope at what time
My mount doesnt have a polar scope 😅
craggy grove
My mount doesnt have a polar scope 😅
which one is it?
novel agate
Tal-1m
craggy grove
tbh u can jst get around with it with like attaching a polar scope parallel to where the RA is pointing lol
harsh hedge
My mount doesnt have a polar scope 😅
Before I started using asiair for PA I was using green laser with 3d printed adapter to get rough alignment. I didnt have polar scope so it was much better than just point my mount at north.
Thats the one I got.
novel agate
I feel it might be difficult to actually attach it to something in a way that is aligned with the axis
But yeah, i think ill have to have a closer look and see what would be possible
right now it's pure eyeballing
harsh hedge
Some mounts have a scale on dec and ra axis. If yours does you should be able to set "home position". My az gti does not have it so I had to roughly find zero position and mark it on the mount.
harsh hedge
I feel it might be difficult to actually attach it to something in a way that is...
Not perfect but should be better than eyeballing🙂
I also use it as a finder scope with my mak.
vagrant vortex
In any case, thanks to you both for having a look at it and playing around! I th...
do you use NINA? TPPA will get you pretty close to perfect PA without much trouble
novel agate
do you use NINA? TPPA will get you pretty close to perfect PA without much troub...
Im afraid my mount is so old it doesnt have any advanced electronics. Its just a simple wormgear motor
So i cant connect it to anything
harsh hedge
Does your mount have something like this?
novel agate
Does your mount have something like this?
Yes, it does!
Problem there though is that those are loose and not set correctly. So I don't really have a set variable to set them to it feels. But I also don't really have a clear understanding of how to use those yet.
This is it (built in 1997)
It's kind of funny because the manual literally says: "point the axis towards polaris"
as if thats an easy thing to do without any form of scope or dot
and then also says: "More precise polar alignment is needed for astrophotography"
harsh hedge
It measures bearing, starting with 0(or 360) at North,90 East,180 South, and 270 West. Unfortunatelly if those rings are loose, you cant really set "home position". If you could then with a laser you could get rough alignment, probably better than just eyeballing. I use this method to roughly set pa before I use asiair pa tool, to save time on fine adjustment.
