103P/Hartley 2023-Oct-11 Dan Bartlett

103P/ Hartley 2023-10-11 015640PDT

Wasat with NGC 2366 and Moderately bright Comet 103P/ Hartley from this Morning 2023-10-11.

Astrobin Full res: https://astrob.in/xazrgp/B/

Delta Geminorum (Wasat) and 12th magnitude spiral galaxy appear in the scene this morning as 10th magnitude comet 103P/ Hartley passes by. Perihelion for comet Hartley is tomorrow!

Observational details:
Backyard setup
scope: C14 D = 356mm; fl =729mm; F# 2
camera: asi 2600mcP
exposure: 135 x60 sec
Seeing: 1/5 _30kts Windgusts
Transparency: 7/10
Observer: DEBartlett
Location: June Lake, California, USA


Image Details:
Projection ............... Gnomonic
Projection origin ........ [1424.562683 778.354757] px -> [RA: 7 23 04.995 Dec: +22 06 47.19]
Resolution ............... 2.128 arcsec/px
Rotation ................. -3.040 deg
Reference system ......... ICRS
Observation start time ... 2023-10-11 08:56:41 UTC
Observation end time ..... 2023-10-11 08:57:41 UTC
Geodetic coordinates ..... 119 04 46 W 37 46 30 N 2357 m
Focal distance ........... 728.82 mm
Pixel size ............... 7.52 um
Field of view ............ 1d 41' 4.7" x 55' 13.3"
Image center ............. RA: 7 23 04.995 Dec: +22 06 47.19 ex: +0.059937 px ey: +0.173174 px
Image bounds:
top-left .............. RA: 7 26 37.117 Dec: +22 36 52.12 ex: +0.031763 px ey: +0.280163 px
top-right ............. RA: 7 19 20.253 Dec: +22 31 30.35 ex: -0.850909 px ey: +0.072883 px
bottom-left ........... RA: 7 26 48.131 Dec: +21 41 46.20 ex: -0.190363 px ey: -0.075134 px
bottom-right .......... RA: 7 19 34.491 Dec: +21 36 27.67 ex: +0.128600 px ey: +0.060717 px