Comet 2009R1 McNaught on early morning of Jun 12, 2010

Date & Time: Jun 11 2010, from 26:45 to 26:56 JST(+0900)
Composed 6 shots with 2 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: Ishihama, Hitachi city, Ibaraki pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(4256 x 2832)
Device Size...FX format (36 x 24mm)
CCD Sensitivity...ISO3200

The comet 2009R1 McNaught in that day has been positioned in Perseus, about 4.5 degrees north from Algol, beta Persei. Unfortunately it was very bad transparency condition, I could not detect the comet with my naked eyes. This picture somehow shows you the comet has an indistinct ion tail of about 20 arc minutes in length.

2009R1 McNaught on early morning of Jun 17, 2010

2009R1 McNaught on early morning of Jun 6, 2010

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