C/2021 S3 (PANSTARRS) 2024-Apr-02 Dan Bartlett

C/2021 S3 PanSTARRS is captured here during a surprisingly dark and stable night as it was crossing a rich Milky Way field amongst the stars of Vulpecula . Actually two setts of images, one is the main scope view using a RASA11 plus a full frame sensor. Piggybacked on this scope is a C6 HyperStar using an APS-C sensor cam.
Full Resolution Image RASA11: https://astrob.in/xl4rt4/B/
Full Resolution ImageC6 HyperStar: https://astrob.in/jl85ub/E/

Observational details:
Backyard setup
scope1: RASA11 fl620mm D279mm
scope2: C6 HyperStar fl300mm D150mm
camera1: asi6200mmP
camera2: asi2600mcP
exposure1: 61 x 90 sec
exposure2: 59 x 90sec
Seeing: 4.5/5
Transparency 9/10
Observer: DEBartlett
Place: June Lake_California USA


Image Info (C6 Processed images):
Projection ............... Gnomonic
Projection origin ........ [1364.373963 1016.900607] px -> [RA: 19 30 31.941 Dec: +22 55 57.31]
Resolution ............... 5.053 arcsec/px
Rotation ................. -70.082 deg
Reference system ......... ICRS
Observation start time ... 2024-04-02 10:47:50 UTC
Observation end time ..... 2024-04-02 10:49:20 UTC
Geodetic coordinates ..... 119 04 46 W 37 46 51 N 2360 m
Focal distance ........... 306.94 mm
Pixel size ............... 7.52 um
Field of view ............ 3d 49' 45.7" x 2d 51' 13.6"
Image center ............. RA: 19 30 31.943 Dec: +22 55 57.31 ex: +0.005442 px ey: -0.009976 px
Image bounds:
top-left .............. RA: 19 27 30.258 Dec: +25 12 22.23 ex: -1.091647 px ey: -1.046515 px
top-right ............. RA: 19 22 00.882 Dec: +21 37 00.79 ex: +1.351758 px ey: -1.777961 px
bottom-left ........... RA: 19 39 14.264 Dec: +24 13 25.23 ex: -1.047669 px ey: +0.006972 px
bottom-right .......... RA: 19 33 27.683 Dec: +20 39 44.16 ex: +2.255692 px ey: +0.503773 px

Image Info (RASA11 Processed images):
Projection ............... Gnomonic
Projection origin ........ [2051.992644 1482.977347] px -> [RA: 19 30 58.566 Dec: +22 56 07.32]
Resolution ............... 2.510 arcsec/px
Rotation ................. -67.244 deg
Reference system ......... ICRS
Observation start time ... 2024-04-02 09:13:57 UTC
Observation end time ..... 2024-04-02 10:59:20 UTC
Geodetic coordinates ..... 119 04 46 W 37 46 51 N 2360 m
Focal distance ........... 618.02 mm
Pixel size ............... 7.52 um
Field of view ............ 2d 51' 41.6" x 2d 4' 5.1"
Image center ............. RA: 19 30 58.589 Dec: +22 56 07.40 ex: +0.512394 px ey: -0.115499 px
Image bounds:
top-left .............. RA: 19 29 13.133 Dec: +24 39 12.26 ex: -0.654666 px ey: -1.226609 px
top-right ............. RA: 19 24 28.605 Dec: +22 00 31.23 ex: +0.898716 px ey: -1.185135 px
bottom-left ........... RA: 19 37 33.902 Dec: +23 50 43.00 ex: -0.744669 px ey: +1.203987 px
bottom-right .......... RA: 19 32 41.615 Dec: +21 12 59.44 ex: +2.087651 px ey: +0.610652 px