Comet 2023A3 Tsuchinshan-ATLAS on May 3, 2024


Date & Time: May 3 2024, from 21:57 to 22:26 JST(+0900)
Composed 8 shots with 3 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
with IDAS LPS-P1 Light-pollution suppression filter
Auto-guided with Meade LX200 Equatorial & Lacerta M-GEN
Digital Camera: Nikon D810A
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(4080×4080)
Device Size...20×20mm
Sensitivity...ISO4000, White Balance...Daylight


On this day, comet 2023A3 Tsuchinshan-Atlas was positioned approximately 11 degrees north of Spica in Virgo, in the southern sky before midnight. The coma's brightness was 10th magnitude, and compared to the previous month's observation, a dust tail extending to the east had rapidly developed, measuring about 10 arc minutes in length.
View angle: 0.70×0.70°


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

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