2023p1 20230824 dbartlett

C/2023 P1 (Nishimura) 2023-08-24
Transparency good, seeing not so...
 
Observational details:
Backyard setup
scope: C14 D = 356mm; fl =729mm; F# 2
camera: asi 2600mcP
exposure: 36 x20 sec
Seeing: 2.5/5
Transparency: 9/10
Observer: DEBartlett
Location: June Lake, California, USA
 
 
Image info(Starless are at full resolution or 1.06'/pix):
WCS transformation ....... Thin plate spline
Control points ........... 280
Spline lengths ........... l:280 b:280 X:279 Y:280
Projection ............... Gnomonic
Projection origin ........ [1363.596599 859.017888] px -> [RA:  7 48 52.451  Dec: +22 04 48.00]
Resolution ............... 2.206 arcsec/px
Rotation ................. -2.906 deg
Reference system ......... ICRS
Observation start time ... 2023-08-24 12:01:54 UTC
Observation end time ..... 2023-08-24 12:02:14 UTC
Geodetic coordinates ..... 119 04 46 W  37 46 30 N  2357 m
Focal distance ........... 703.19 mm
Pixel size ............... 7.52 um
Field of view ............ 1d 40' 15.2" x 1d 3' 9.6"
Image center ............. RA:  7 48 52.452  Dec: +22 04 47.99  ex: +0.000671 px  ey: -0.000198 px
Image bounds:
   top-left .............. RA:  7 52 21.915  Dec: +22 38 35.36  ex: -0.001391 px  ey: -0.000895 px
   top-right ............. RA:  7 45 10.335  Dec: +22 33 59.43  ex: +0.002191 px  ey: -0.000787 px
   bottom-left ........... RA:  7 52 33.197  Dec: +21 35 15.51  ex: +0.007884 px  ey: +0.001729 px
   bottom-right .......... RA:  7 45 24.802  Dec: +21 30 45.33  ex: +0.001960 px  ey: +0.000065 px