Comet Wirtanen on Jan 26, 2008

Date & Time: Jan 26 2008, from 18:30 to 18:58 JST(+0900)
Composed 6shots with 5 minutes exposed
Optical: TAKAHASHI 12.5cm(4.9") fluorite refractor with a conversion lens (f=700mm, F5.6)
with IDAS LPS-P1 Light-pollution suppression filter
Auto-guided with VIXEN ATLUX Equatorial
Digital Camera: Nikon D80 (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording format...12bit CCD-RAW, converted to 16bit TIFF(3872 x 2592)
CCD Sensitivity...ISO1600

The comet Wirtanen in that day has been positioned between Cetus and Pisces, has a brightness of about 8th or 9th magnitude, almost same figure with it captured in previous time. And this image can show you an indistinct tail in ENE direction.

Wirtanen on Feb 10, 2008

Wirtanen on Jan 13, 2008

Copyright(c) 2008 by Naoyuki Kurita, All rights reserved.
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