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Gliese 777

HR 7670, HD 190360 (A component)

Proper NamesNone
Bayer DesignationNone
Flamsteed NumberNone
HR (BSC)7670
HD190360
Other DesignationsGliese 777
ConstellationCygnus
Right Ascension20h 4m 27s
Declination+29° 57' 21"
Distance52 light years
16 parsecs
MagnitudeApparent: +5.7
Absolute: +4.7
Spectral ClassG6IV Yellow Subgiant
Optimum VisibilityAugust
NotesGliese 777 is a binary star, with a faint red dwarf orbiting the main yellow subgiant at a distance of some 3,000 AU. Closer in, the yellow primary has at least two companion planets. Gliese 777 Ab is a Jupiter-like gas giant averaging about 4 AU from the star, while Gliese 777 Ac is a relatively low-mass planet in a much closer orbit.

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