Comet Lulin on Mar 20, 2009


f=1600mm prime focus

Date & Time: Mar 20 2009, from 20:31 to 21:01 JST(+0900)
Composed 6 shots with 6 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: Mar 20 2009, from 19:51 to 20:17 JST(+0900)
Composed 6 shots with 5 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...ISO1600


The comet Lulin in that day has been positioned in Gemini, going away from the Earth drastically. I could detect a 7th magnitude coma and a short dust tail. The comet has become smaller and dimmer than that observed in last week clearly, hardly detectable with small binoculars.


Lulin on Mar 28, 2009
Lulin on Mar 14, 2009

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