Comet 2007Q3 Siding Spring on Feb 6, 2010

Date & Time: Feb 6 2010, from 24:08 to 24:38 JST(+0900)
Composed 4 shots with 10 minutes exposed
Optical: Meade 25cm(10") Schmidt Cassegrain with a conversion lens (f=1760mm, F7.1)
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 Siding Spring moved to the northern region of Bootes has a coma brightness of 10th magnitude and a bit spread dust tail. The comet has started to get dimmer, it can be recognized that the diameter of coma became smaller slightly.

Siding Spring on Feb 18, 2010

Siding Spring on early morning of Jan 23, 2010

Copyright(c) 2010 by Naoyuki Kurita, All rights reserved.
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