· · · ·

61 Cygni

V1803 Cygni

Proper NameNone
Bayer DesignationNone
Flamsteed Number61 Cygni
HR (BSC)8085 (A), 8086 (B)
HD201091 (A), 201092 (B)
Right Ascension21h 6m 54s (A), 21h 6m 55s (B)
Declination+38° 44' 58" (A), +38° 44' 31" (B)
Distance11 light years
3.5 parsecs
MagnitudeApparent: +5.2 (A), +6.1 (B)
Absolute: +7.5 (A), +8.3 (B)
Spectral ClassK5 Orange Dwarf (A), K7 Orange Dwarf (B)
Optimum VisibilityAugust
NotesA binary pair of two small and variable orange stars, separated by a distance averaging some 84 AU and orbiting their common centre of gravity over a period of more than six centuries. The 61 Cygni system is a close neighbour of the Sun, at a distance of just 11.4 light years.

The designation given to two nearby orange dwarf stars in the constellation of Cygnus. The stars have very similar properties, and lie less than a light year from one another. One (designated 61 Cygni A) is very slightly brighter than its companion 61 Cygni B: both lie on the threshold of naked-eye visibility.


Related Entries