Comet 2009K5 McNaught on May 21, 2010


Date & Time: May 21 2010, from 24:56 to 25:09 JST(+0900)
Composed 6 shots with 2.5 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: Ootake coast, Hokota 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 positioning in northern Cepheus can be detected with a coma brightness of 8th magnitude and a tail of 5 arc minutes in length stretched to north direction.
The comet has passed its maximum brightness, will be dimmer gradually from now on.


2009K5 McNaught on Jun 5, 2010
2009K5 McNaught on May 15, 2010

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