C/2023 H2 (Lemmon) 2023-Nov-11 Dan Bartlett

So much data to choose from to process for C/2023 H2 Lemmon, so I let the animation tell me which 20 minutes to stack. I also hesitated and chose not to resample the images so these are rather large files even using 80% JPEG compression so I dare not add the files here (accept a sample of each).

First a link to the animation for only two nights. In the animation you can see the sensitivity of the tail due to changes (both sky and actual comet changes) over the course of the hour or two for each night. Animation: https://astrob.in/4cugw3/0/

The next two stacked images are from two separate scopes.

And for the widefield: https://astrob.in/32v28h/C/
Observational details:
Backyard setup
scope: RASA 11 D = 279mm; fl =620mm;
exposure: 34 x30 sec
Seeing: 4/5 both
Transparency: 9/10
Observer: DEBartlett

Image Details:
Projection ............... Gnomonic
Projection origin ........ [4581.803852 3057.143242] px -> [RA: 19 19 10.138 Dec: +9 13 23.80]
Resolution ............... 1.252 arcsec/px
Rotation ................. -4.065 deg
Reference system ......... ICRS
Observation start time ... 2023-11-12 04:40:07 UTC
Observation end time ..... 2023-11-12 04:40:37 UTC
Geodetic coordinates ..... 119 04 46 W 37 46 51 N 2360 m
Focal distance ........... 619.25 mm
Pixel size ............... 3.76 um
Field of view ............ 3d 11' 14.7" x 2d 7' 37.3"
Image center ............. RA: 19 19 10.147 Dec: +9 13 23.80 ex: -0.366105 px ey: +0.166813 px
Image bounds:
top-left .............. RA: 19 25 19.784 Dec: +10 23 41.07 ex: -1.202246 px ey: -0.508888 px
top-right ............. RA: 19 12 24.022 Dec: +10 09 53.67 ex: +0.204833 px ey: -0.798231 px
bottom-left ........... RA: 19 25 53.965 Dec: +8 16 26.83 ex: -1.739138 px ey: +0.759521 px
bottom-right .......... RA: 19 13 02.786 Dec: +8 02 38.43 ex: -0.034619 px ey: -1.963252 px