Comet 2012F6 Lemmon on early morning of Dec 23, 2012


Date & Time: Dec 22 2012, from 28:04 to 28:34 JST(+0900)
Composed 6 shots with 6 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain, with a conversion lens (f=1790mm, F7.1)
with BaaderPlanetarium Moon&Skyglow filter
Auto-guided with Meade LX200 Equatorial & Pictor 201XT
Digital Camera: Nikon D700
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(2784 x 1848)
Device Size...DX format (24 x 16mm)
Sensitivity...ISO2500, White Balance...Daylight




The comet 2012F6 Lemmon in that day has been positioned at about 6 degrees SSW of epsilon Crv, a southwest star of the Corvus's square, I could observe the greenish coma with a brightness of 9th magnitude. The comet has no clear tails. Comet Lemmon is moving to south rapidly, we will not be able to observe it on and after beginning of 2013 at Japan.




2012F6 Lemmon on Aug 11, 2013

2012F6 Lemmon on early morning of Dec 9, 2012


Copyright(c) 2012 by Naoyuki Kurita, All rights reserved.
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