Comet 2009P1 Garradd on May 12, 2012

Date & Time: May 12 2012, from 20:48 to 20:58 JST(+0900)
Composed 4 shots with 3 minutes exposed
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera: Canon EOS 550D (Remodeled)
Location: Hitachi-oota city, Ibaraki pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5184 x 3456)
CCD Sensitivity...ISO1600

The comet Garradd in that day has been positioned at northern edge of Cancer, about 4 degrees north of iota Cnc. The coma looks smaller than that of previous observation with a brightness of about 9th magnitude. You can detect a dust tail stretched in north direction, the ion tail cannot be detected. And a small galaxy at about 40 arc minutes northeast of the comet is NGC2683 in Lynx.

Spectrum of Garradd on early morning of Jan 28, 2012

Garradd on Mar 24, 2012

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