Comet Wirtanen on Jan 13, 2008

Date & Time: Jan 13 2008, from 18:24 to 18:47 JST(+0900)
Composed 5shots with 4 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

Comet Wirtanen in that day has been positioned between Pisces and Cetus, brightened up to about 9th magnitude. But it was bad transparency condition, cannot be captured the coma clearly.

Wirtanen on Jan 26, 2008

Wirtanen on Jan 5, 2008

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