Comet 2009R1 McNaught on early morning of May 18, 2010


Date & Time: May 17 2010, from 26:28 to 26:40 JST(+0900)
Composed 8 shots with 90 seconds 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: Kujihama coast, Hitachi 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 2009R1 McNaught in that day has been positioned around 5 degrees north of gamma Peg. I could hardly detect the comet with telecsope-aided eyes because this image has captured at light-polluted site. But this image shows you an 8th magnitude coma and an indistinct dust tail stretched in southwest direction.


2009R1 McNaught on early morning of May 22, 2010
2009R1 McNaught on early morning of May 9, 2010

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