Comet 2023E1 ATLAS on Jul 16, 2023


Date & Time: Jul 16 2023, from 24:42 to 25:08 JST(+0900)
Composed 7 shots with 4 minutes exposed
Optical: TAKAHASHI 12.5cm(4.9") Fluorite refractor with conversion lens (f=710mm, F5.7)
with IDAS LPS-D1 Light-pollution suppression filter
Auto-guided with VIXEN ATLUX Equatorial
CMOS Camera: ZWO ASI2600MC Pro (Cooled temp.: -10°C)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording format...16bit FITS, converted to 16bit TIFF(6248×4176)
Device Size...23.5×15.7mm, Gain...300


On this day, comet 2023E1 ATLAS is positioned as a circumpolar star at the northernmost part of the Draco, at a declination of 79°. Only a hazy, blueish coma of approximately 10th magnitude was visible similar to last month. The presence of the tail could not be confirmed in the image.
This image has been cropped with an equivalent focal length of 1000mm.
View angle: 1.35×0.9°


2023E1 ATLAS on Aug 18, 2023
2023E1 ATLAS on Jun 17, 2023

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