Comet C/2011 L4 (PANSTARRS) on 4.04.2013 near Messier 31

  Size: 2000 px      
© Velimir Popov & Emil Ivanov 2019

C/2011 L4 (PANSTARRS) is a non-periodic comet. It was discovered using the Pan-STARRS telescope located near the summit of Haleakalā, on the island of Maui in Hawaii, on June 2011. It became visible to the naked eye when it was near perihelion in March 2013. Comet C/2011 L4 probably took millions of years to come from the Oort cloud. After leaving the planetary region of the Solar System, the post-perihelion orbital period (epoch 2050) is estimated to be roughly 106000 years. Dust and gas production suggests the comet nucleus is roughly 1 kilometer in diameter. This three panel mosaic shows the comet near Messier 31 (Andromeda Galaxy).

Image details:


Center of field RA 00:36:02 (h:m:s)
Center of field DE +41:24:31 (deg:m:s)
Size 3.08 x 1.76 (deg)
Pixel scale: 2.99 (arcsec/pixel)
Orientation: Up is 353 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: 4.04.2013
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, Three panel mosaic. Bin 2, Total Exposure Time - 60 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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