Comet Christensen on Aug 14, 2009


Date & Time: Aug 14 2009, from 22:52 to 23:25 JST(+0900)
Composed 4 shots with 6 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


This image shows the comet Christensen captured 7 months later from my last observation. We can see a dimmed and white coma with a visual brightness of about 8th magnitude. Now the comet has been positioned where we can see almost all night, I could appreciate it only with a binocular.


Christensen on Sep 20, 2009
Christensen on Jan 17, 2009

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