Comet 2023E1 ATLAS on Aug 18, 2023


Date & Time: Aug 18 2023, from 21:40 to 22:32 JST(+0900)
Composed 6 shots with 6 minutes exposed
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
with IDAS 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: Koumi town, Nagano pref.

Camera Settings: Recording format...16bit FITS, converted to 16bit TIFF(6248×4176)
Device Size...23.5×15.7mm, Gain...100


On this day in 2023, Comet 2023 E1 Atlas was located near the zenith in the eastern part of the Cygnus just before midnight. A tailless 10th magnitude bluish-green coma was observed. The estimated apparent diameter of the coma as seen from this image was about 15 arcminutes and had grown larger since last month's imaging. The comet will continue its rapid going south through the autumn constellations, gradually decreasing in brightness.
This image has been cropped with an equivalent focal length of 1000mm.
View angle: 1.35×0.9°


2023E1 ATLAS on Sep 9, 2023
2023E1 ATLAS on Jul 16, 2023

Copyright(c) 2023 by Naoyuki Kurita, All rights reserved.
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