Comet 2022E3 ZTF on Feb 24, 2023

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f=530mm prime focus

Date & Time: Feb 24 2023, from 22:08 to 22:36 JST(+0900)
Composed 8 shots with 4 minutes exposed
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
with IDAS LPS-D1 Light-pollution suppression filter
Auto-guided with TAKAHASHI JP Equatorial
CMOS Camera: ZWO ASI2600MC Pro (Cooled temp.: -25°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...100


Click on image to enlarge

f=1600mm prime focus

Date & Time: Feb 24 2023, from 21:44 to 22:13 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



On this day, the comet 2022E3 ZTF is located at the southern edge of Taurus, about 12 degrees south of Aldebaran. It is much smaller and darker, and the brightness of the coma is about 8th magnitude. A wide dust tail extends in the northeast direction, but the ion tail could hardly be confirmed. The Taurus molecular cloud spreads around here, and you can see that the vague nebula overlaps with the comet in the first image.
1st image: View angle: 2.4×1.6°
2nd image: View angle: 0.7×0.7°


2023E1 ATLAS on Jun 17, 2023
2022E3 ZTF on Feb 11, 2023

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