2023a3 20241104 dbartlett

C2023_A3_Tsuchinshan_ATLAS_C14Hyperstar_asi6200mcP_23x60sec_26x60sec_2024_11_03190045local_JuneLake_California_USA_DEBartlett
 
As comet C/2023 A3 Tsuchinshan-ATLAS becomes fainter a larger scope is required for this 2xpanel mosaic.
 
 
 
Notes:
1.  Much of the previous structural details is absent from the previous November 01 image.
2.  The comet is becoming increasingly fainter noticeably so in binoculars.
3.  A C14 SCT in a hyperstar configuration with a full frame sensor was employed.
4.  SPCC was used for color calibration and I indulged in color saturation.
???????5.  About five degrees of tail length could be traced with a pair of 18x50 IS binos.   
 
 
 

 
 
Observational Notes:
scope: C14  fl729mm F/2
image: panel1: 23x60sec panel2: 26x60sec
Seeing: 3.5/5
Transparency: 6/10 intermittent Clouds
Observer: DEBartlett
Place: JuneLake California USA (Altitude +2357m)
 
Image Info (all ):
Down sampled 2x2 (CMOS = BIN 2x2)
(All images processed solely using PixInsight)
 
Panel1:
Projection ............... Gnomonic
Projection origin ........ [2316.913228 1481.439857] px -> [RA: 18 15 27.617  Dec:  +4 06 32.86]
Resolution ............... 2.123 arcsec/px
Rotation ................. -3.120 deg
Reference system ......... ICRS
Observation start time ... 2024-11-04 02:04:42 UTC
Observation end time ..... 2024-11-04 03:01:46 UTC
Geodetic coordinates ..... 119 04 46 W  37 46 51 N  2360 m
Focal distance ........... 730.46 mm
Pixel size ............... 7.52 um
Field of view ............ 2d 44' 0.2" x 1d 44' 51.8"
Image center ............. RA: 18 15 27.617  Dec:  +4 06 32.86  ex: +0.044832 px  ey: -0.022216 px
Image bounds:
   top-left .............. RA: 18 20 43.797  Dec:  +5 03 02.46  ex: -1.004635 px  ey: -1.279918 px
   top-right ............. RA: 18 09 48.848  Dec:  +4 54 07.20  ex: +0.019201 px  ey: -1.098884 px
   bottom-left ........... RA: 18 21 05.665  Dec:  +3 18 44.59  ex: -1.585810 px  ey: +0.053915 px
   bottom-right .......... RA: 18 10 12.064  Dec:  +3 09 52.12  ex: -0.075071 px  ey: -0.167252 px