Comet Hergenrother on Oct 20, 2012

Date & Time: Oct 20 2012, from 24:08 to 24:42 JST(+0900)
Composed 5 shots with 8 minutes exposed
Optical: VIXEN 20cm(7.9") VISAC, with a conversion lens (f=1278mm, F6.4)
with BaaderPlanetarium Moon& Skyglow filter
Auto-guided with TAKAHASHI JP Equatorial & SBIG STV
Digital Camera: Canon EOS 600D (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5184 x 3456)

The comet Hergenrother in that day has been positioned just north of Pegasus's square, about 5.5 degrees WNW of Alpheratz. It was fairly good transparency condition compared with previous observed day, I could detect a dust tail with a length of over 10 arc minutes. And the comet has a coma with almost same brightness of 9th magnitude.

Hergenrother on Nov 17, 2012

Hergenrother on Oct 12, 2012

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