2023a3 20240608 dbartlett

Using an automatically calculated magnitude of 20.49 to calculate the imagesolver in PixInsight, this image really does go "deep" into the starfield. 
I'm hesitant to say that comet C/2023 A3 Tsuchinshan-ATLAS is registering a blueish coma as opposed to the typical greenish coma noted on so many other visitors.  The image was indeed color calibrated using the SPCC with a white reference to a type G2V star.  Perhaps to early to tell, however as I stated, this image does go "deep" into the faintness of the starfield.  Time will tell.

Full Resolution Image:
https://astrob.in/dksfx6/B/

Backyard setup
scope: C14 HyperStar  fl728mm D356mm
exposure: 32 x 120 sec 
Seeing: 3/5
Transparency 8/10 
Observer: DEBartlett
Place: June Lake_California USA
 
Image Info (Processed ):
Projection ............... Gnomonic
Projection origin ........ [1465.015857 964.998687] px -> [RA: 11 48 22.630  Dec:  +2 53 51.04]
Resolution ............... 2.128 arcsec/px
Rotation ................. -4.093 deg
Reference system ......... ICRS
Observation start time ... 2024-06-08 05:03:11 UTC
Observation end time ..... 2024-06-08 06:14:07 UTC
Geodetic coordinates ..... 119 04 46 W  37 46 51 N  2360 m
Focal distance ........... 728.99 mm
Pixel size ............... 7.52 um
Field of view ............ 1d 43' 54.3" x 1d 8' 26.6"
Image center ............. RA: 11 48 22.630  Dec:  +2 53 51.05  ex: -0.015754 px  ey: -0.014244 px
Image bounds:
   top-left .............. RA: 11 51 40.069  Dec:  +3 31 34.86  ex: -1.137819 px  ey: -1.142997 px
   top-right ............. RA: 11 44 45.524  Dec:  +3 24 09.30  ex: +0.017316 px  ey: -1.138782 px
   bottom-left ........... RA: 11 51 59.307  Dec:  +2 23 27.62  ex: -1.155466 px  ey: -0.029408 px
   bottom-right .......... RA: 11 45 05.228  Dec:  +2 16 02.72  ex: +0.120606 px  ey: +0.064060 px   
_._,_._,_

Page last updated: Thu 11 Jul 00:45:00 BST 2024