13P/Olbers 2024-Apr-01 Dan Bartlett

_13P_Olbers_RASA11_asi6200mcP_cropped_10x120sec_2024_04_01_205234PDT_JuneLake_California_USA_DEBartlett

Went for a number of comets on April 1st - 2nd. After 12P/Pons-Brooks, my second target was 13P/ Olbers, seen here. Also setting in the western evening skies I salvaged 10 x 120 seconds of this comet to stack for this image. After seeing Taras' image multiple days later, same comet, where a plasma tail was clearly visible I pushed my 20 minutes of exposure time to the extreme. The molted background is a result of the overstretched image and some hints of tail dynamics appears (however so slightly). This image is highly cropped due to the full frame's super wide field of view which I found unnecessary to save.

Full Resolution Image: https://astrob.in/c7own0/B/

Observational details:
Backyard setup
scope: RASA11 fl620mm D279mm
camera: asi6200mmP
exposure: 10 x 120 sec
Seeing: 4/5
Transparency 8/10
Observer: DEBartlett
Place: June Lake_California USA


Image Info (Processed images):
Projection ............... Gnomonic
Projection origin ........ [936.091058 994.033975] px -> [RA: 3 44 07.838 Dec: +15 42 50.71]
Resolution ............... 2.510 arcsec/px
Rotation ................. 22.950 deg
Reference system ......... ICRS
Observation start time ... 2024-04-02 03:52:34 UTC
Observation end time ..... 2024-04-02 03:54:34 UTC
Geodetic coordinates ..... 119 04 46 W 37 46 51 N 2360 m
Focal distance ........... 618.00 mm
Pixel size ............... 7.52 um
Field of view ............ 1d 18' 18.5" x 1d 23' 9.7"
Image center ............. RA: 3 44 07.837 Dec: +15 42 50.71 ex: -0.000161 px ey: +0.000088 px
Image bounds:
top-left .............. RA: 3 47 45.320 Dec: +16 05 44.17 ex: -1.098506 px ey: -1.098751 px
top-right ............. RA: 3 42 45.363 Dec: +16 36 17.01 ex: +1.103477 px ey: -1.108637 px
bottom-left ........... RA: 3 45 29.582 Dec: +14 49 19.28 ex: -1.569269 px ey: +1.221849 px
bottom-right .......... RA: 3 40 31.178 Dec: +15 19 41.28 ex: +2.151880 px ey: +0.558188 px