Proper Name None Bayer Designation None Flamsteed Number None HR (BSC )None HD None Variable DesignationV 1581 Cygni * (A)Other Designations Gliese 1245Constellation Cygnus Right Ascension 19h 53m 54s (A), 19h 53m 55s (B) Declination +44° 24' 51" (A), +44° 24' 54" (B) Distance 15.3 light years parsecs Magnitude Apparent: +13.13 (A), +13.99 (B)Absolute: +14.77 (A), +15.65 (B)Spectral Class M 5.5V red dwarf (A)M 6V red dwarf (B)Optimum Visibility August Notes A system of red dwarf stars notable for their proximity to the Solar System , the Gliese 1245 system lies just fifteen light years from the Sun . The system contains three red dwarfs ; as well as the pair Gliese 1245 A and B, Gliese 1245 A has a third low-mass red star , designated Gliese 1245 C, in a close orbit .
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* Different sources apply the variable designation 'V 1581 Cygni ' in different ways. Some assign it to the individual component star Gliese 1245 A, while others prefer to use it to refer to Gliese 1245 A and B (both of which are flare stars ) as a pair.
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