New Year Present: C/2021 A1 Data Set!

Avdhoeven

Here is my attempt. I will try later to see if I can combine the three fields, but until now it was hard with the calibration unfortunately.

Vasile_Unguru

Here it is. Used only 1 panel and the bin2 data.
Lukas, thank you very much.

Astrophoto_Canada

Thank you for making this available! I imaged it with my gear from Canada in November when it wasn't as speculator as it is now. Several weeks of arctic-like conditions and clouds scuppered further attempts while it was still visible in the north.

Heres my version. Probably room for improvement with careful editing.

A nice thought is as Leonard leaves us ... it takes 2021 with it into oblivion!

Sina

Some very nice images from everyone. Here is a slightly cleaned up version of mine.

lukas_demetz

Well done all 🙂
If you feel like some more work, there are some new sky and panel flats for the Veloce online. I do wonder if the panel flats improve the situation

SkG

Hello everyone! I established a Skygems account only recently, and just came across this small Comet Leonard data set from late December. Here's my result, which is based on averaging three 120-s luminance images, and coloring that mean with an RGB frame made from a single 120-s image from each of the red, green and blue channels. With these selection choices, I restricted the airmass of the employed data to about 2.6 or so. To calibrate the data, I downloaded 20-30 raw bias, dark and flat frame images that were taken as close as possible to the observation date, and made my own mean frames with CCDStack. Subsequent processing was done in Photoshop CC. I appreciate this opportunity - it's the first time I've processed a comet image!

lukas_demetz

Nice!

UjvarosiB

Greetings to all, nice images!

I know this thread is over a year old, but I've just found the forum recently when registering an account at Skygems. I am a simple hobby photographer (not astro) but comets are among my favourite subjects and I've photographed a few so far with my DSLR camera and telephoto lenses. I happen to live in an area with crappy weather (continuous clouds for weeks in winter), so I'm glad to finally come across this service that lets people request high quality raw data taken with dedicated gear from places with dark skies and better weather. I also like the points-per-request system (versus monthly subscriptions offered by other remote astro services). I'm thankful for this shared data set, it was great for gaining experience in LRGB processing and panel stitching (which will be useful in the future when I request and process images). Unfortunately, I was not able to totally get rid of gradients on the layers (some frames had strong light veiling so I had to leave them out completely) so the colours are not perfect, also did not use the 3rd panel set (as I was not able to see any of the tail there even with aggressive stretching, it must have been too faint so far from the coma). Processed with Siril (pre-processing with calibration files found on the server, background extraction, stretching, stacking the L frames, compositing colour), Starnet (star-removal for comet-only stack), Gimp (compositing comet-only and star-aligned stacks, stitching the panels, adjusting colour balance, reducing star size), and a final touch with IrfanView (cropping, saturation boost). Here is my result, maybe not as good as the others here but I hope you'll like it 🙂

lukas_demetz

Well done!

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