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61 Ursae Majoris System

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Exoplanetary Scratchpad

[SysBP Img]

61 UMa is also known as HR 4496, Gl 434, HD 101501, and NSV 5291. Nearby late yellow dwarf star. It is just barely visible to the naked eye. Its spectrum has been used as a stable anchor point since 1943. Its chromospheric activity suggests it younger than 500 Million Years old, but its lack of an easily observable disk suggests it is over 1 Billion years old. Lack of detection of large planets in tight orbits bodes well for finding a future habitable planet. Its variability was studied in 1953 in hopes of finding it was an eclipsing binary. It lies in the same line of sight as the sub-giant star HD 101212, though it is unclear if these are gravitationally bound or even in proximity of each other. In Star Trek, this is the system the planet Archer IV belongs to.

61 Ursae Majoris System Web PagesEdit

61 Ursae Majoris System In the NewsEdit

Radial Velocity Measurements (1953)Edit

See AlsoEdit

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