Comet Machholtz on Dec 16, 2004


Date & Time: Dec 16 2004, from 21:51 to 22:10 JST(+0900)
Composed 8 shots with 120 seconds exposed
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
with IDAS LPS-P1 light-pollution supression filter
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...ISO1600, White Balance...fluorescence





Date & Time: Dec 16 2004, from 22:32 to 22:47 JST(+0900)
Composed 8 shots with 90 seconds exposed
Optical: TAMRON SP f=300mmF2.8, Aperture: F3.3
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...ISO1600, White Balance...Auto




Comet Machholz in this day has positioned at southwest of Rigel with a coma brightness of 4th magnitude. I could detect it easily with naked eyes. Its ion tail seems a bit dimmer than that taken on Dec 10. But it has still over 3 degrees in length.




Machholz on Dec 17, 2004

Machholz on Dec 10, 2004


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