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Groombridge 1618

Star
Groombridge 1618 is a star in the northern constellation Ursa Major. With an apparent visual magnitude of +6.6, it lies at or below the threshold of stars visible to the naked eye for an average observer. It is relatively close to Earth, at 15.89... Wikipedia
Constellation: Ursa Major
Temperature: 3,970 K
Magnitude: 6.6
Radius: 0.605±0.02 R
Age: 6.6 Gyr
Declination: +49° 27′ 15.2510″
Distance: 15.886 ± 0.002 ly; (4.8706 ± 0.0005 pc)