2021s3 20240530 dbartlett

12th Magnitude Comet C/2021 S3 PanSTARRS Amongst the Stars of Cygnus Milky Way 2024-05-30, 31 and June 1


May 30, 2024:  First night of capture taking 24 x 180 seconds of images.
C_2021_S3_PanSTARRS_C14Hyperstar_asi2600mcP_24x180sec_2024_05_30_014000PDT_JuneLake_California_USA_DEBartlett




Backyard setup
scope: C14 HyperStar  fl728mm D356mm
exposure: 24 x 180 sec 
Seeing: 3/5
Transparency 8/10 
Observer: DEBartlett
Place: June Lake_California USA
 
Image Info (Processed ):
Projection ............... Gnomonic
Projection origin ........ [1490.005853 979.047113] px -> [RA: 20 33 08.660  Dec: +55 50 11.40]
Resolution ............... 2.127 arcsec/px
Rotation ................. -4.290 deg
Reference system ......... ICRS
Observation start time ... 2024-05-30 08:40:00 UTC
Observation end time ..... 2024-05-30 08:43:00 UTC
Geodetic coordinates ..... 119 04 46 W  37 46 51 N  2360 m
Focal distance ........... 729.35 mm
Pixel size ............... 7.52 um
Field of view ............ 1d 45' 37.6" x 1d 9' 24.1"
Image center ............. RA: 20 33 08.661  Dec: +55 50 11.40  ex: +0.012608 px  ey: -0.007743 px
Image bounds:
   top-left .............. RA: 20 39 10.477  Dec: +56 28 05.73  ex: -1.141182 px  ey: -1.317912 px
   top-right ............. RA: 20 26 30.276  Dec: +56 20 05.52  ex: +0.125909 px  ey: -1.106048 px
   bottom-left ........... RA: 20 39 36.366  Dec: +55 18 57.91  ex: -1.107819 px  ey: +0.405137 px
   bottom-right .......... RA: 20 27 18.142  Dec: +55 11 10.20  ex: +0.088304 px  ey: +0.449064 px