Comet Olbers on Aug 11, 2024


Date & Time: Aug 11 2024, from 20:07 to 20:23 JST(+0900)
Composed 6 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


This is comet Olbers, photographed for the first time in about three months, hindered by the bad weather of the rainy season at Japan. On this day, the comet was observed at 7th magnitude in the low northwest sky in the evening, at the southeastern edge of the constellation Ursa Major. After brightening to a maximum of 6th magnitude in July, it is now gradually fading. The coma has an apparent diameter of about 6 arcminutes. You can see a broad dust tail and a narrow, 20-arcminute long ion tail extending in the ENE direction, overlapping each other.
View angle: 0.70×0.70°


Olbers on May 4, 2024

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