Comet Holmes on Nov 16 & 17, 2007


f=1600mm prime focus

Date & Time: Nov 16 2007, from 20:59 to 21:32 JST(+0900)
Mosaic of 2 flames of composed 4shots with 4 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with a conversion lens (f=1600mm, F6.3)
Auto-guided with Meade LX200 Equatorial & Pictor 201XT
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




f=530mm prime focus (Rendez-vous of Comet Holmes & alpha Persei)

Date & Time: (left)Nov 16 2007, from 24:46 to 25:24 JST(+0900), 1min. x 4shots & 6min. x 4shots
(right)Nov 17 2007, from 23:09 to 23:53 JST(+0900), 1min. x 4shots & 6min. x 4shots
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
with IDAS LPS-P1 Light-pollution suppression filter
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




This page shows you the movement of comet Holmes for 2 days from Nov 16 to 17. The comet has the rendez-vouos with alpha Persei, its glare has made hard to detect the comet with naked eyes. The comet has an apparent diameter of about 30 arc minutes, the nucleus has become small and indistinct. The coma has a brightness of about 3.5th magnitude.




Holmes on early morning of Nov 23, 2007

Holmes on Nov 14, 2007


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