Comet 2023H2 Lemmon on Nov 18, 2023


Date & Time: Nov 18 2023, from 18:42 to 19:01 JST(+0900)
Composed 7 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, the comet 2023H2 Lemon was observed in the southwestern evening sky, located in the southern part of Capricornus with a faint coma of 7th magnitude. Due to the moon's illumination at an age 6, the tail extending towards the east was indistinct and could not be confirmed. Currently, the comet has nearly reached its maximum brightness. It is rapidly moving towards the southeast and will no longer be observable from Japan by January 2024.
View angle: 0.70×0.70°


Hartley 2 on Aug 20, 2023
2023E1 ATLAS on Sep 9, 2023

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