Comet Tuttle on Dec 1, 2007

Date & Time: Dec 1 2007 from 21:47 to 22:16 JST(+0900)
Composed 6shots with 5 minutes exposed
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
Auto-guided with TAKAHASHI JP Equatorial
Digital Camera: Fujifilm FinePix S2Pro
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording format...12bit CCD-RAW, converted to 16bit TIFF(3024 x 2016)
CCD Sensitivity...ISO1600, White Balance...Auto

The comet Tuttle in that day has been positioned in the constellation of Cepheus, near the Polaris. The coma has a visual brightness of about 10th magnitude, and can be detected greenish ionized composition with a diameter of about an arc minutes. The comet Tuttle will move southward from now on and predicted that the comet will be brightened about 6th magnitude in Jan 2008.

Tuttle on Dec 14, 2007

Change of Comet Holmes

Copyright(c) 2007 by Naoyuki Kurita, All rights reserved.
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