Comet Christensen on Jan 17, 2009


Date & Time: Jan 17 2009, from 18:23 to 18:54 JST(+0900)
Composed 6 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 Christensen in that day could be observed in evening northwest skies around the Lacerta with a coma brightness of 10th magnitude and a short tail. It will be hard to observe the comet for the time being because closes to the sun, but keeps its position in the summer's Milky Way. We'll able to appreciate the comet in Aug 2009 with its maximum brightness under fairly good condition.




Christensen on Aug 14, 2009

Christensen on Dec 28, 2008


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