Comet C/2009 (Garradd) on 26.08.2011 near globular cluster Messier 71

  Size: 1800 px      
© Velimir Popov & Emil Ivanov 2019

Comet C/2009 P1 was discoverd by G. J. Garradd (Siding Spring Observatory, Australia) on four images obtained on August 13 th 2009. 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 14th 2009. This image shows the comet on August 26th 2011, when the comet passed near the globular cluster Messier 71. Below can be seen a short animation:

Image details:


Center of field RA 19:53:47 (h:m:s)
Center of field DE +18:51:01 (deg:m:s)
Size 35.2 x 25.7 (arcmin)
Pixel scale: 2.99 (arcsec/pixel)
Orientation: Up is 98.7 degrees E of N
Charts and image details obtained from
Optic(s): ASA 12" Astrograph @ f/3.6 (Newton)
Mount: ASA DDM85 Standard
Camera: SBIG STL 11000 M
Filters: Luminance, Red, Green, Blue, Astronomik filters
Dates/Times: 26.08.2011
Location: IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exp. Details: L:1x5 min,R:1x5 min, G:1x5 min, B:1x5 min, Bin 2, Total Exposure Time - 20 min.
More details: Dark and flat frames reduction
Processing: PixInsight / PS
Copyright: Velimir Popov and Emil Ivanov 2013 - 2019. All Rights Reserved
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