Messier 63 - Sunflower Galaxy in Canes Venatici

  Size: 2000 px      
© Velimir Popov & Emil Ivanov 2018

Messier 63 (also known as M63, NGC 5055, or the Sunflower Galaxy) is a spiral galaxy in the constellation Canes Venatici. It consists of a central disc surrounded by many short spiral arm segments. This galaxy form is known as flocculent. M63 is part of the M51 Group, a group of galaxies that includes M51 (the 'Whirlpool Galaxy'). M63 is an active galaxy with a LINER nucleus. The existence of a super massive black hole at the nucleus is uncertain; if it does exist, then the mass is estimated as (8.5±1.9)×108 M☉.


Image details:


Center of field RA 13:15:50 (h:m:s)
Center of field DE +42:01:36 (deg:m:s)
Size 1.78 x 1.19(deg)
Pixel scale: 1.77 (arcsec/pixel)
Orientation: Up is 255 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: Red, Green, Blue, Astronomik filters
Dates/Times: Feb - Mar. 2017
Location: IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exp. Details: L:16x10 min., R:16x10 min, G:16x10 min., B:16x10 min., Bin 1, Total Exposure Time - 640 min. (10:40hrs)
More details: Dark and flat frames reduction
Processing: PixInsight / PS
Copyright: Velimir Popov and Emil Ivanov 2013 - 2018. All Rights Reserved
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