Comet 2009K5 McNaught on Jun 5, 2010


Date & Time: Jun 5 2010, from 24:15 to 24:37 JST(+0900)
Composed 8 shots with 3 minutes exposed
Optical: VIXEN 20cm(7.9") VISAC with a conversion lens (f=1278mm, F6.4)
with BaaderPlanetarium Moon & Skyglow filter
Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera: Nikon D700
Location: Mt. Mizuishi, Iwaki city, Ibaraki pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(2784×1848)
Device Size...DX format (24×16mm)
CCD Sensitivity...ISO6400


The comet 2009K5 McNaught in that day has positioned at central Camelopardalis, detected a 8th magnitude coma and a tail in north direction with a length of over 10 arc minutes. The comet has a sufficient evolved greenish ion composition surrounding coma, although passed its maximum brightness.


2009R1 McNaught on early morning of May 9, 2010
2009K5 McNaught on May 21, 2010

Copyright(c) 2010 by Naoyuki Kurita, All rights reserved.
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