Comet 252P LINEAR on May 1, 2016

Date & Time: May 1 2016, from 25:27 to 25:52 JST(+0900)
Composed 6 shots with 5min. exposed
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
with IDAS LPS-P2-FF Light-pollution suppression filter
Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera: Canon EOS 550D (Remodeled)
Location: Koumi town, Nagano pref.

Camera Settings: Recording format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456)

In that day the comet 252P LINEAR has positioned in northern Ophiuchus, about 6 degrees southwest from alpha Oph, Ras Alhague. I could find the comet with a visual brightness of about 7th magnitude. The comet has a diameter of about 15 arc minutes, a bit smaller than that in last month.
  View angle: 2.4×1.6°

2016U1 NEOWISE on early morning of Dec 31, 2016

252P LINEAR on Apr 9, 2016

Copyright(c) 2016 by Naoyuki Kurita, All rights reserved.
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