Comet 2021S3 PanSTARRS on early morning of May 4, 2024


Date & Time: May 3 2024, from 26:04 to 26:32 JST(+0900)
Composed 8 shots with 4 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


Comet 2021S3 PanSTARRS has been moving northward through the Milky Way in Cygnus since last month. On this day, it was located in the northeast sky at dawn, 3.5 degrees WSW of Deneb. The brightness of the coma is even fainter than last month, at a dimmer 11th magnitude, and a dust tail extending beyond 0.5 degrees to the west is visible. In this area, the emission nebula IC1318 is spread out, with some of its parts appearing red in this image. The comet will be observable as it moves from Cygnus to Cepheus throughout 2024, but it will rapidly dim from now on.
View angle: 0.70×0.70°


Tsuchinshan-ATLAS on Apr 13, 2024
2021S3 PanSTARRS on early morning of Apr 13, 2024

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