C/2023 P1 (Nishimura) 2023-Aug-15 Dan Bartlett

C/2023 P1 Nishimura (HN00003 when imaged) 2023-08-15. Only 5 minutes (20 x 15 second subs) could be salvaged as it cleared Down's Mtn.

Observational details:
Backyard setup
scope: C14 D = 356mm; fl =729mm; F# 2
camera: asi 2600mcP
exposure: 20 x15 sec
Seeing: 4/5
Transparency: 7/10
Observer: DEBartlett
Location: June Lake, California, USA


Projection ............... Gnomonic
Projection origin ........ [1019.317886 1535.760508] px -> [RA: 7 15 17.905 Dec: +19 42 37.70]
Resolution ............... 2.130 arcsec/px
Rotation ................. -3.833 deg
Reference system ......... ICRS
Observation start time ... 2023-08-15 12:04:27 UTC
Observation end time ..... 2023-08-15 12:04:42 UTC
Geodetic coordinates ..... 119 04 46 W 37 46 30 N 2357 m
Focal distance ........... 728.34 mm
Pixel size ............... 7.52 um
Field of view ............ 1d 12' 18.1" x 1d 49' 4.4"
Image center ............. RA: 7 15 18.017 Dec: +19 42 36.03 ex: +0.000346 px ey: -0.000381 px
Image bounds:
top-left .............. RA: 7 17 36.141 Dec: +20 39 15.52 ex: +0.004268 px ey: -0.002174 px
top-right ............. RA: 7 12 28.316 Dec: +20 34 27.16 ex: +0.005439 px ey: -0.001008 px
bottom-left ........... RA: 7 18 06.180 Dec: +18 50 35.60 ex: -0.022823 px ey: +0.007454 px
bottom-right .......... RA: 7 13 01.550 Dec: +18 45 51.42 ex: -0.001149 px ey: +0.001667 px