Garradd (C/2009 P1)
G. J. Garradd (Siding Spring Observatory, Australia) discovered this comet on four images obtained between 2009 August 13.77 and August 13.81. He was using the 0.5-m Uppsala Schmidt telescope and a CCD camera. The magnitude was given as 17.5-17.7 and the coma was described as circular and 15" across. The first confirmation was obtained by W. Robledo (El Condor Observatory, Cordoba) on August 14.17.
Equipment: Exposure details: Location:
Telescope: RCOS 12.5 Open Truss
Mount: Paramount Me
Camera: SBIG STL-11000M
Filters: Baader LRGB
Luminance: 6x40sec
Red: 6x40sec
Green: 6x40sec
Blue: 6x40sec
Rachia, Veroia, Greece
N 40o29'00.0" - E 22o12'55.0"
10 September 2011
Image details:
Acquisition: MaxImDL Reduction/stacking: CCDStack RGB weights: Aladin/eXcalibrator
RGB combine: CCDStack LRGB creation: Photoshop CS3
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