Comet Holmes on Dec 13 till 15, 2007


f=742mm prime focus

Date & Time: (left) Dec 13 2007, from 26:01 to 26:20 JST(+0900), 6min. x 4shots
(right) Dec 15 2007, from 23:49 to 24:26 JST(+0900), 6min. x 4shots
Optical: TAKAHASHI 16cm(6.3") epsilon with a conversion lens (f=742mm, F4.6)
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




f=300mm telephoto

Date & Time: Dec 15 2007, from 23:07 to 23:24 JST(+0900)
Composed 4shots with 5 minutes exposed
Optical: TAMRON SP f=300mmF2.8, Aperture: F3.2
with IDAS LPS-P2 Light-pollution suppression filter
Auto-guided with TAKAHASHI JP Equatorial
Digital Camera: Nikon D70 (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording format...12bit CCD-RAW, converted to 16bit TIFF(3008 x 2000)
CCD Sensitivity...ISO800




This page shows you change of comet Holmes for 3 days from Dec 13 till 15. The comet has a diameter of about a degree, can be detect with naked eyes. We can see a thin dust tail stretched toward SSE from the nucleus clearly. The comet has an anomalous figure of "comet in comet".




Holmes on Dec 31, 2007

Holmes on Dec 8, 2007


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