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Ross 614
Ross 614 (V577 Monocerotis) is a red dwarf UV Cetiflare star and it is the primary member of a nearby binary star system in the constellation of Monoceros. This star has a magnitude of about 11, making it invisible to the unaided eye even though it is one of the stars nearest to the Sun.〔(【引用サイトリンク】 title =SIMBAD query result: V
* V577 Mon -- Flare Star )〕 This system is among the closest to our Sun at an estimated distance of about 13.3 light years. Because this star is so close to the Earth it is often the subject of study, hence the large number of designations by which it is known.
==Binary star system==
This binary star system consists of two closely spaced low-mass red dwarfs. The secondary star is a dim magnitude 14 lost in the glare of the nearby primary star.〔(【引用サイトリンク】 title =SIMBAD query result: LHS 1850 -- High proper-motion Star )〕
The most recent determination of the system orbital elements comes from a study by George Gatewood using older sources along with data from the Hipparcos satellite. This study yielded an orbital period of about 16.6 years and a semi-major axis separation of about 1.1 arc seconds (2.4—5.3 AU).〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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