13p 20240805 dbartlett

Not Necessarily Fading, Comet 13P/ Olbers Under Difficult Conditions, Aug 05, 2024UT.  Occasional high clouds and some unusual brightening (Skyglow, noctilucent clouds, or maybe distant aurora) played havoc on my subframes. Most of the comet subframes looked horrible.   Initially I kept only 16 frames but felt that SubframeSelector's choice of keeping 34  frames for integration made a brighter comet image, so I went with SS's 34. Actually I feel the cometaligned & integrated image shows a better representation of the comet, despite the artifacts.
 
 
 
Comet Olbers continues easily seen in 18 x50IS binoculars
 
Dan
 
 
 
Full Resolution:
https://astrob.in/oerqmw/C/
 
 
 
Backyard setup
scope: RASA 11  fl620mm D279mm
exposure: 34 x 60 sec 
Seeing: 2/5
Transparency: 6/10 (Skyglow + scattered high clouds)
Observer: DEBartlett
Place: June Lake_California USA (Altitude +7700ft)
 
Image Info (Processed ):
(All images processed solely using PixInsight)
Projection ............... Gnomonic
Projection origin ........ [512.074915 511.878222] px -> [RA: 11 41 48.560  Dec: +33 35 19.93]
Resolution ............... 120.051 arcsec/px
Rotation ................. 0.032 deg
Reference system ......... ICRS
Observation start time ... 2024-08-05 04:53:02 UTC
Focal distance ........... 8.59 mm
Pixel size ............... 5.00 um
Field of view ............ 34d 8' 52.4" x 34d 8' 52.4"
Image center ............. RA: 11 41 48.551  Dec: +33 35 20.33  ex: -0.000153 px  ey: +0.000114 px
Image bounds:
   top-left .............. RA: 13 17 33.613  Dec: +47 35 52.65  ex: -1.500091 px  ey: -1.101507 px
   top-right ............. RA: 10 05 56.912  Dec: +47 34 46.36  ex: +2.152520 px  ey: -1.097598 px
   bottom-left ........... RA: 12 48 08.907  Dec: +16 21 26.39  ex: -1.644064 px  ey: +2.150472 px
   bottom-right .......... RA: 10 35 30.201  Dec: +16 22 09.88  ex: +1.943553 px  ey: +1.999681 px