Comet 2023A3 Tsuchinshan-ATLAS on Jun 29, 2024


Date & Time: Jun 29 2024, from 20:25 to 21:08 JST(+0900)
Composed 7 shots with 4 minutes exposed
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
with LPS-D1 Light-pollution suppression filter
Auto-guided with TAKAHASHI EM-200 Equatorial & Lacerta M-GEN
CMOS Camera: ZWO ASI2600MC Pro (Cooled temp.: -10°C)
Location: Furudono town, Fukushima pref.

Camera Settings: Recording format...16bit FITS, converted to 16bit TIFF(1750×1750)
Device Size...6.6×6.6mm, Gain...100


This image is the comet Tsuchinshan-ATLAS captured during a clear spell in the rainy season. It was located about 3 degrees south of σLeo, which corresponds to the end of the hind leg of the constellation, in the low western sky after twilight. The brightness of the comet's coma was 9th class magnitude on this day, with a distinct dust tail stretching about 20 arcminutes to the east. The comet will no longer be visible from Japan by July 2024, and will reappear in October after passing perihelion.
View angle: 0.70×0.70°


2023A3 Tsuchinshan-ATLAS on Oct 13, 2024
2023A3 Tsuchinshan-ATLAS on May 3, 2024

Copyright(c) 2024 by Naoyuki Kurita, All rights reserved.
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