Comet 2009P1 Garradd on Aug 10, 2011


Date & Time: Aug 10 2011, from 26:19 to 26:37 JST(+0900)
Composed 7 shots with 3 minutes exposed
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera: Nikon D700
Location: Hitachi-oota city, Ibaraki pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(2784 x 1848)
Device Size...DX format (24 x 16mm)
CCD Sensitivity...ISO1600




The comet 2009P1 Garradd in that day has been positioned at about 3.5 degrees east of gamma Delphinus, eastern region of the constellation. The comet has an 8th magnitude coma and a dust tail with its length of about 15 arc minutes in SSE direction. And the comet has clear greenish ionized composition surrounding the coma.
This image has been trimmed to equivalent focal length of 1000mm.





Garradd on Aug 29, 2011

Garradd on Aug 5, 2011


Copyright(c) 2011 by Naoyuki Kurita, All rights reserved.
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