Comet Churyumov-Gerasimenko on Nov 5, 2021


Date & Time: Nov 5 2021, from 23:53 to 24:23 JST(+0900)
Composed 8 shots with 4 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
with BaaderPlanetarium Moon&Skyglow 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


In that day the comet Churyumov-Gerasimenko has positioned in Gemini, a 10th or 11th magnitude coma and a 20 arc minutes-long dust tail in west direction could be observed at 2.7 degrees southwest of Pollux. You can detect a greenish ionized composition is surrounding the coma from this image.
  View angle: 0.70×0.70°


Churyumov-Gerasimenko on Nov 28, 2021
Churyumov-Gerasimenko on Oct 10, 2021

Copyright(c) 2021 by Naoyuki Kurita, All rights reserved.
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