Random astrophotography pictures - feel free to leave advices

[winston1978]

AskarFMA180Pro + Svbony SV705C + ZWO AM3 + Stellarmate on RaspberryPi4 8Gb (no guide as i do not know how to set it up yet)
16 Lights 30 sec 120 gain
10 Darks 30 Sec 120 gain
5 Flats 0.1 sec 120 gain
Used Deep Sky Stacker and save as .PNG file then online AI Denoiser (Visual Paradigm) for final image

[cytan299]

Hi Winston,

Did you stretch the image? And focus looks off to me ...

cytan

[winston1978]

Hi Cytan,
Not familiar with stretching, am new to image processing.
With DSS, put in the Lights Darks Flats, check all, register checked files and stack, these are the steps.
Then used online denoiser to process DSS output image.
You may be right about it being out of focus.
The night i took the frames is without bahtinov mask and only zoom in live view and eyeballed the focus.

The replacement mask for lost one is here and I've got a different lens too Svbony SV503. Will try get another image of same target with same settings to compare results.

[cytan299]

Hi Winston,

You'll need to stretch the image because there's data hidden in it that are revealed when it is stretched. You might consider using Siril for both stacking, stretching etc. which is free (note: Siril is well regarded by many astro hobbyists, but I've only used Siril for processing comet images only):

Here's the Siril link:
https://siril.org/

And there's many tutorials that teach you how to use Siril on youtube.

cytan

P.S. I'd strongly suggest that you increase the *total* integration time. For example, since you're taking 30 second subframes, this means you'll need 360 subframes to have a total of 3 hours of integration. I understand that it's quite difficult to have long integration times in Singapore, but do the best that you can because what you have now: 8 minutes of integration time is really insufficient to get faint details .

[winston1978]

Hi cytan,
Well noted. I have siril installed for awhile but still not familiar with the functions which is why use DSS because it's less complicated for me. I'll try read up more on it.
Thanks.