Comet Lulin on early morning of Jan 25, 2009

Date & Time: Jan 24 2009, from 28:15 to 28:58 JST(+0900)
Composed 8 shots with 6 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with a conversion lens (f=1600mm, F6.3)
Auto-guided with Meade LX200 Equatorial & Pictor 201XT
Digital Camera: Nikon D50 (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...12bit CCD-RAW, converted to 16bit TIFF(3008 x 2000)
CCD Sensitivity...ISO1600

The comet Lulin in that day has been positioned at center of Libra. The comet has a round coma with diameter and brightness of 10 arc minutes and about 7th magnitude, respectively, I could detect a dimmed light only with a portable binocular. This image shows you an indistinct anti-tail with a length of over 20 arc minutes in east direction.

Lulin on early morning of Feb 1, 2009

Lulin on early morning of Dec 29, 2008

Copyright(c) 2009 by Naoyuki Kurita, All rights reserved.
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