Comet Machholz on Dec 6, 2004

Date & Time: Dec 6 2004, from 21:28 to 21:56 JST(+0900)
Composed 12 shots with 90 seconds exposed
Optical: TAMRON SP f=300mmF2.8 with conversion lens (f=420mm, F4.0)
Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera: Fujifilm FinePix S2 Pro
Location: Narusawa vil., Yamanashi pref.

Camera Settings: Recording Format...12bit CCD-RAW, converted to 16bit TIFF(3024 x 2016)
CCD Sensitivity...ISO800, White Balance...Auto

Comet Machholz in Dec 2004 has a coma brightness of about 5th magnitude, positioned in area of Eridanus. The comet has a fan-like dust tail stretched in west and a thin ion tail in north direction. You can detect in reversed image that the comet has an ion tail being constricted in the middle .

Machholz on Dec 8, 2004

Machholz on Nov 20, 2004

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