Comet Giacobini-Zinner on Aug 9, 2018


Date & Time: Aug 9 2018, from 25:56 to 26:00 JST(+0900)
Composed 2 shots with 4min. exposed
Optical: BORG 67FL with a conversion lens (f=324mm, F4.8)
with BaaderPlanetarium Moon&Skyglow filter
Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera: Canon EOS 6D (Remodeled)
Location: Koumi town, Nagano pref.

Camera Settings: Recording format...14bit CCD-RAW, converted to 16bit TIFF(5472×3648)
Sensitivity...ISO1600


The comet Giacobini-Zinner in that day has positioned at 4 degrees NW of epsilon Cassiopeiae, I could observe the coma with a brightness of 8th magnitude. You can see a clear dust tail stretched in WSW with a length of about 30 arc minutes. This return of the comet has a fairly good condition, we can chase it in higher northern skies from August to September.
  The image has been cropped with an equivalent f=800mm. (View angle: 2.50×1.71°)


Giacobini-Zinner on Aug 16 & 17, 2018
2016R2 PanSTARRS on Dec 22, 2017

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