Uploaded by

BAA Comet Section

Observer

dbartlett

Observed

2022 May 24 - 21:58

Uploaded

2022 May 30 - 20:47

Objects

C/2021 O3

Full filename

2021o3/2021o3_20220524_2158_dbartlett.jpg

Target name

C/2021 O3

Title

Observation details: RASA 11 620mm fl asi2600mcP 60sx135 stacked in PixInsight JuneLake California, USA DEBartlett Image Details: WCS transformation ....... Linear Projection ............... Gnomonic Projection origin ........ [1389.478009 2184.035331] px -> [RA: 7 26 23.585 Dec: +80 25 14.68] Resolution ............... 1.568 arcsec/px Rotation ................. -6.128 deg Reference system ......... ICRS Observation start time ... 2022-05-25 04:58:22 UTC Focal distance ........... 591.89 mm Pixel size ............... 4.50 um Field of view ............ 1d 12' 38.0" x 1d 54' 9.9" Image center ............. RA: 7 26 23.569 Dec: +80 25 14.74 Image bounds: top-left .............. RA: 7 39 48.233 Dec: +81 24 59.94 top-right ............. RA: 7 07 49.468 Dec: +81 16 24.47 bottom-left ........... RA: 7 41 52.237 Dec: +79 30 59.40 bottom-right .......... RA: 7 15 30.913 Dec: +79 23 55.43 As each mono image popped-up on the computer screen (Sequence Generator Pro), the two bright galaxies NGC 2336 (Upper) and IC 467 (lower) were highly structured and easily visible. I could barely see a hint of C/2021 O3 as I scoured several of preliminarily stretched frames. Very ghost like. Once debayered the contrasted green hue of the comet was easily visible. I could not detect a nucleus nor hint of a central concentration in any of the individual 60s frames.