Comet Tuttle-Giacobini-Kresak on May 20, 2017


Date & Time: May 20 2017, from 21:26 to 22:06 JST(+0900)
Composed 13 shots with 3min. exposed
Optical: VIXEN 20cm(7.9") VISAC with a conversion lens (f=1278mm, F6.4)
with Baader Planetarium Moon&Skyglow filter
Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera: Canon EOS 6D (Remodeled)
Location: Furudono town, Fukushima pref.

Camera Settings: Recording format...14bit CCD-RAW, converted to 16bit TIFF(5472×3648)
Device Size...35×24mm, Sensitivity...ISO6400


The comet Tuttle-Giacobini-Kresak that closed to the Earth 1.5 months aga has positioned in eastern Hercules in that day. The comet has become comparatively dimmer than my previous observation, a brightness of coma can be estimated as 9th magnitude. The comet will move south getting dimmer from now on.
  The image has been cropped with an equivalent f=1600mm. (View angle: 1.28×0.85°)


Comet 2017O1 ASASSN on Sep 30, 2017
Comet Tuttle-Giacobini-Kresak on Apr 28, 2017

Copyright(c) 2017 by Naoyuki Kurita, All rights reserved.
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