13P/Olbers 2024-Jul-06 Dan Bartlett

_13P_Olbers_RASA11_asi6200mcP_29x60sec_2024_07_05_221313local_JuneLake_California_USA_DEBartlett

Tails Up or Tails Down, Comet 13P/Olbers Points Tail Up last night's session. She's making things difficult for target framing. With its tail swings from night to night, this comet is pointing its plasma tail much higher than the night previous. There is a substantial lower plasma spike where last night the dominant plasma tail existed. An interesting target indeed, waking me up better than a cup of coffee to check the previous nights results (after a 8 to 9 hour automatic calibration session in PI).

I've put on hold processing co-images using the C14hyperstar Rig until time allows (or something really interesting happens that needs the closeup FOV).
Dan

Full Resolution:
https://astrob.in/bra931/B/

Backyard setup
scope: RASA 11 fl620mm D279mm
exposure: 29 x 60 sec
Seeing:4.5/5
Transparency 7.5/10
Observer: DEBartlett
Place: June Lake_California USA (Altitude +7700ft)

Image Info (Processed ):
(All aspects of these images were processed soley using PixInsight)
Projection ............... Gnomonic
Projection origin ........ [2217.144561 1535.149428] px -> [RA: 9 06 59.164 Dec: +42 45 45.87]
Resolution ............... 2.510 arcsec/px
Rotation ................. -2.388 deg
Reference system ......... ICRS
Observation start time ... 2024-07-06 05:13:13 UTC
Focal distance ........... 618.13 mm
Pixel size ............... 7.52 um
Field of view ............ 3d 5' 28.1" x 2d 8' 27.3"
Image center ............. RA: 9 06 59.240 Dec: +42 45 45.52 ex: -0.029064 px ey: +0.180128 px
Image bounds:
top-left .............. RA: 9 15 18.854 Dec: +43 52 46.89 ex: +0.006750 px ey: +0.380624 px
top-right ............. RA: 8 58 10.855 Dec: +43 44 36.41 ex: -1.421452 px ey: -0.170781 px
bottom-left ........... RA: 9 15 30.219 Dec: +41 44 25.65 ex: +0.002277 px ey: -0.749718 px
bottom-right .......... RA: 8 58 56.654 Dec: +41 36 27.60 ex: -2.048907 px ey: +0.519301 px