Comet 2/P Encke on 23.02.2017

  Size: 1800 px      
© Velimir Popov & Emil Ivanov 2016

Comet Encke (2P/Encke) is a periodic comet that completes an orbit of the Sun once every 3.3 years. This is the shortest period of a bright comet. 2P/Encke was first recorded by Pierre Méchain in 1786, but it was not recognized as a periodic comet until 1819 when the German astronomer Johann Franz Encke computed its orbit. Like most comets, it has a very low albedo, reflecting only 4.6% of the light it receives. The diameter of the nucleus of Encke's Comet is 4.8 km. This image shows the comet on the evening of 23 February 2017 at 17:35 UT. Despite of the low brightness, clearly visible are the two tails - dust (to the left) and ion (to the right).

Image details:


Center of field RA 00:09:24 (h:m:s)
Center of field DE +07:19:09 (deg:m:s)
Size 1.57 x 1.09 (deg)
Pixel scale: 2.99 (arcsec/pixel)
Orientation: Up is 104 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: 17. Feb. 2017
Location: IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exp. Details: L:1x2 min, R:1x2 min, G:1x2 min, B:1x2 min, Bin 2, Total Exposure Time - 8 min.
More details: Dark and flat frames reduction
Processing: PixInsight / PS
Copyright: Velimir Popov and Emil Ivanov 2013 - 2016. All Rights Reserved
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