Comet Machholz on Dec 17, 2004


Date & Time: Dec 17 2004, from 22:30 to 22:44 JST(+0900)
Composed 8 shots with 90 seconds exposed
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
Auto-guided with TAKAHASHI JP Equatorial
Digital Camera: Fujifilm FinePix S2 Pro
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





Date & Time: Dec 17 2004, from 22:53 to 23:07 JST(+0900)
Composed 8 shots with 90 seconds exposed
Optical: TAMRON SP f=300mmF2.8, Aperture: F4.0
Auto-guided with TAKAHASHI JP Equatorial
Digital Camera: Fujifilm FinePix S2 Pro
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




It was good transparency condition, you can show detailed structure of ion tail of comet Machholz in this picture taken on Dec 17. The direction of ion tail is changing from north to east day by day because of movement of the comet. The comet will close to the Pleiades at the beginning of the New Year 2005.




Machholz on Dec 18, 2004

Machholz on Dec 16, 2004


Copyright(c) 2004 by Naoyuki Kurita, All rights reserved.
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