Comet 2023A3 Tsuchinshan-ATLAS on Oct 15, 2024

Click on image to enlarge

Date & Time: Oct 15 2024, 17:59 JST(+0900)
Composed 4 shots with 4 seconds exposed
Optical: AF zoom-Nikkor 80-200mmF2.8ED (f=200mm, stop: F4.0)
Fixed on tripod
Digital Camera: Nikon D810A
Location: Hitachi city, Ibaraki pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(7360×4912)
Device Size...FX format (36×24mm)
Sensitivity...ISO1600, White Balance...Daylight


This is a photograph of the comet Tsuchinshan-Atlas in the western evening sky, captured with a telephoto lens. At this time, the comet had just moved from the constellation Virgo into Serpens (Caput). The brightness of the coma was estimated to be 2nd magnitude. The length of the dust tail extending upwards (towards the east) appears to be more than 8 degrees. Additionally, a very faint anti-tail extending downwards (towards the west) from the coma can be observed.
View angle: 2.5×1.7°


Olbers on May 4, 2024
2023A3 Tsuchinshan-ATLAS on Oct 13, 2024

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