2023a3 20250429 dbartlett

tes:
 

    Pushed the stretch in hopes of highlighting the extent of the tail. 
    Anti-Tail can be seen once again, very faint. 
    Tsuchinishan - ATLAS is moving at 0.22 deg/day 
    I've included the Finson & Probstein (FP) model so the observer can compare.  

 
Full resolution link:
https://app.astrobin.com/i/8qji65?r=B
 
 
 
Observational Notes:
scope: C14  fl729mm F/2
Camera: asi6200mcP
image: 27x300sec
Seeing: 4/5
Transparency: 9/10 
Observer: DEBartlett
Place: JuneLake California USA (Altitude +2434m)
 
Image Info (all ):
Down sampled 2x2 (CMOS = BIN 2x2)
(All images processed solely using PixInsight)
Projection ............... Gnomonic
Projection origin ........ [4693.107928 3063.603160] px -> [RA: 20 15 25.109  Dec: +23 38 52.63]
Resolution ............... 2.12 arcsec/px
Rotation ................. -2.503 deg
Reference system ......... ICRS
Focal distance ........... 730.70 mm
Pixel size ............... 3.76 um
Field of view ............ 2d 46' 3.3" x 1d 48' 23.1"
Image center ............. RA: 20 15 25.109  Dec: +23 38 52.57  ex: +0.000108 px  ey: +0.080808 px
Image bounds:
   top-left .............. RA: 20 21 33.744  Dec: +22 48 04.43  ex: -1.544295 px  ey: -1.399854 px
   top-right ............. RA: 20 09 36.916  Dec: +22 40 57.45  ex: +0.246302 px  ey: -1.851178 px
   bottom-left ........... RA: 20 21 18.262  Dec: +24 35 57.42  ex: -1.502040 px  ey: +1.307885 px
   bottom-right .......... RA: 20 09 11.555  Dec: +24 28 45.95  ex: +0.151917 px  ey: +0.790582 px