Comet Pons-Brooks on Jan 13, 2024


Date & Time: Jan 13 2024, from 18:19 to 18:40 JST(+0900)
Composed 8 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, comet 12P/Pons-Brooks is positioned in the low northwestern evening skies, situated just under 3 degrees southwest of γCyg (Sadr). The comet is visible in the lower-left corner of the field of view, moving slowly east, almost 30 arc minutes southeast of NGC6888 (Crescent Nebula). Similar to the previous week, the comet's diffuse coma brightness remains at approximately 9th magnitude.
View angle: 0.70×0.70°


Pons-Brooks on Feb 10, 2024
Pons-Brooks on Jan 5, 2024

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