C/2009 P1 (Garradd) @ 650nm
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This is a composite of 90 frames of 60sec. of exposure taken with the Newton 0.4m at Cavezzo (MPC 107) with an interferometric filter centered at 650nm (10nm FWHM)
Start of exposures: 2011-09-22 19:42:26.9 U.T.
Field about 27' x 20' Scale: 1.51 arcsec/pixel. North is Up Est is Left