Comet Lulin on early morning of Feb 7, 2009


f=1600mm prime focus

Date & Time: Feb 6 2009, from 28:37 to 29:03 JST(+0900)
Composed 6 shots with 5 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 D50 (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...12bit CCD-RAW, converted to 16bit TIFF(3008×2000)
CCD Sensitivity...ISO1600



f=530mm prime focus

Date & Time: Feb 6 2009, from 28:41 to 29:14 JST(+0900)
Composed 6 shots with 6 minutes exposed
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: Nikon D80 (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...12bit CCD-RAW, converted to 16bit TIFF(3872×2592)
CCD Sensitivity...ISO800


The comet Lulin in that day has been positioned at about 50 arc minutes northwest of alpha Librae, I could detect a greenish coma with a brightness of 5th or 6th magnitude with naked eyes. The coma has become slightly larger than that observed in last week, and is moving faster because the comet closes to the Earth. And the comet has dimmed tails in east and west directions, almost same situation with last week.


Lulin on Feb 21, 2009
Lulin on early morning of Feb 1, 2009

Copyright(c) 2009 by Naoyuki Kurita, All rights reserved.
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