13P/Olbers 2024-May-31 Dan Bartlett

_13P_Olbers_C14HyperStar_asi2600mcP_37x30sec_2024_05_31_213652PDT_JuneLake_California_USA_DEBartlett

Poor Skies for Comet 13P/ Olbers, May31 2024 Still around 20 Minutes

Colors and tail structure much more subdued in appearance, this past Friday nights session. Stacked star sizes were an average FWHM of 6.6 vs previous night's imaging of 5.5. It is interesting to note the structural differences from the previous night's image especially tail side close to nucleus.

Starless stacked comet aligned image included (Calibrated, aligned, star removal and stretched only)


Full Resolution Image:
https://astrob.in/wdxn04/B/


Backyard setup
scope: C14 HyperStar fl728mm D356mm
exposure: 37 x 30 sec
Seeing: 2.5/5
Transparency 7/10
Observer: DEBartlett
Place: June Lake_California USA

Image Info (Processed ):
Projection ............... Gnomonic
Projection origin ........ [1338.068582 982.927907] px -> [RA: 6 15 43.610 Dec: +37 29 39.79]
Resolution ............... 2.133 arcsec/px
Rotation ................. -4.188 deg
Reference system ......... ICRS
Observation start time ... 2024-06-01 04:20:25 UTC
Observation end time ..... 2024-06-01 04:48:57 UTC
Geodetic coordinates ..... 119 04 46 W 37 46 51 N 2360 m
Focal distance ........... 727.13 mm
Pixel size ............... 7.52 um
Field of view ............ 1d 35' 8.4" x 1d 9' 53.9"
Image center ............. RA: 6 15 43.609 Dec: +37 29 39.80 ex: +0.003907 px ey: -0.062525 px
Image bounds:
top-left .............. RA: 6 19 31.837 Dec: +38 07 47.09 ex: -1.104384 px ey: -1.230828 px
top-right ............. RA: 6 11 30.626 Dec: +38 00 28.55 ex: +0.121054 px ey: -1.131787 px
bottom-left ........... RA: 6 19 53.317 Dec: +36 58 12.52 ex: -1.071906 px ey: +0.484043 px
bottom-right .......... RA: 6 11 59.174 Dec: +36 51 03.59 ex: +0.162741 px ey: +0.499831 px