Comet Machholtz on Oct 22 & 23, 2004


Date & Time: Oct 22 2004, from 26:37 to 27:00 JST(+0900)
Composed 4 shots with 7 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
Auto-guided with Meade LX200 Equatorial & Pictor 201XT
Digital Camera: Fujifilm FinePix S2 Pro
Location: Ooizumi vil., Yamanashi pref.

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



Date & Time: Oct 23 2004, from 25:48 to 26:06 JST(+0900)
Composed 6 shots with 3 minutes exposed
Optical: TAMRON SP f=300mmF2.8 with conversion lens (f=420mm, Aperture: F4.0)
Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera: Fujifilm FinePix S2 Pro
Location: Koumi town, Nagano pref.

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


Comet Machholtz in this day has positioned in Columba, almost same position with that captured 1 week ago (Oct 16). The comet has a visual brightness of about 8th magnitude and a coma with a diameter of about 5 arc minutes. A lower image taken with a telephoto lens shows you a clear and short tail in west direction being a bit warped. I could detect it in field of view of portable binocular, it seems brighter satisfactorily.


Machholtz on Nov 6, 2004
Machholtz on Oct 16, 2004

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