Comet Stephan-Oterma on Nov 2, 2018


Date & Time: Nov 2 2018, from 26:07 to 26:24 JST(+0900)
Composed 5 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 & Pictor 201XT
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


The comet 38P Stephan-Oterma in that day was positioned at about 3 deg. southwest of delta Gem, I could detect a 9th magnitude coma. The comet has a short tail stretched in west direction.
  View angle: 0.70×0.70°


Stephan-Oterma on Nov 10, 2018
Swift-Gehrels on Feb 1, 2019

Copyright(c) 2018 by Naoyuki Kurita, All rights reserved.
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