Comet Christensen on Sep 20, 2009


Date & Time: Sep 20 2009, from 20:16 to 20:42 JST(+0900)
Composed 4 shots with 8 minutes exposed
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
with IDAS LPS-P1 Light-pollution suppression filter
Auto-guided with TAHASHI JP 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(3008×2000)
CCD Sensitivity...ISO800


The comet Christensen in that day has been positioned in central region of Aquila, can be observed with a coma brightness of about 9th magnitude. The comet has a whitish coma with gaseous composition, you can recognize that has been distributed in eastern direction.


Christensen on Oct 11, 2009
Christensen on Aug 14, 2009

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