Difference between revisions of "83 Leonis A"
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'''83 Leonis A''' is part of a wide binary star system, along with [[83 Leonis B]], located around 57.6 light-years away from our Sun, Sol, in the southeastern part of the constellation Leo, the Lion. Star A is a yellow-orange to orange-red subgiant of spectral and luminosity type G6/8-K0 IV. The star may has a mass near or somewhat smaller than Sol's, as much as 1.9 times its diameter<ref>(Pasinetti-Fracassini et al, 2001)</ref><ref>(Johnson and Wright, 1983)</ref>, and about 66 percent of its visual luminosity. The star appears to be around 1.2 to 2.3 times as enriched as Sol with elements heavier than hydrogen ("metallicity"), based on its abundance of iron<ref>(Cayrel de Strobel et al, 1991, page 292)</ref><ref>(Extrasolar Planets Encyclopaedia)</ref>. | '''83 Leonis A''' is part of a wide binary star system, along with [[83 Leonis B]], located around 57.6 light-years away from our Sun, Sol, in the southeastern part of the constellation Leo, the Lion. Star A is a yellow-orange to orange-red subgiant of spectral and luminosity type G6/8-K0 IV. The star may has a mass near or somewhat smaller than Sol's, as much as 1.9 times its diameter<ref>(Pasinetti-Fracassini et al, 2001)</ref><ref>(Johnson and Wright, 1983)</ref>, and about 66 percent of its visual luminosity. The star appears to be around 1.2 to 2.3 times as enriched as Sol with elements heavier than hydrogen ("metallicity"), based on its abundance of iron<ref>(Cayrel de Strobel et al, 1991, page 292)</ref><ref>(Extrasolar Planets Encyclopaedia)</ref>. | ||
− | The distance from 83 Leonis A where an [[Earth]]-type planet would be "comfortable" with liquid water may be centered around 0.81 AU -- between the orbital distances of [[Venus]] and [[Earth]] in the Solar System. At that distance from the star, such a planet would have an orbital period of around three fourths of an [[Earth]] year assuming that Star A has a mass near Sol's. | + | The distance from '''83 Leonis A''' where an [[Earth]]-type planet would be "comfortable" with liquid water may be centered around 0.81 AU -- between the orbital distances of [[Venus]] and [[Earth]] in the Solar System. At that distance from the star, such a planet would have an orbital period of around three fourths of an [[Earth]] year assuming that Star A has a mass near Sol's. |
''(Data from [http://www.solstation.com/ SolStation.com])'' | ''(Data from [http://www.solstation.com/ SolStation.com])'' |
Latest revision as of 00:21, 18 May 2016
This page is a Wikipedia or SolStation data dump with little or no relation – or, worse yet, possibly with contradictions – to the situation in Fenspace. You can help FenWiki by expanding this page. |
83 Leonis A | |
Stellar characteristics | |
---|---|
Constellation | Leo |
Right ascension (Epoch J2000) | 11h 26m 45.30s |
Declination (Epoch J2000) | +03° 00' 47.20" |
Spectral type | G6/8-K0 IV |
Distance from Sol | 57.6 ly |
Other designations | 83 Leo A, HR 4414, Gl 429 A, Hip 55846, HD 99491, BD+03 2502, SAO 118864, FK5 1296, LHS 2407, LTT 13109, LFT 805, Wolf 393, STF 1540 A, ADS 8162 A. |
83 Leonis A is part of a wide binary star system, along with 83 Leonis B, located around 57.6 light-years away from our Sun, Sol, in the southeastern part of the constellation Leo, the Lion. Star A is a yellow-orange to orange-red subgiant of spectral and luminosity type G6/8-K0 IV. The star may has a mass near or somewhat smaller than Sol's, as much as 1.9 times its diameter[1][2], and about 66 percent of its visual luminosity. The star appears to be around 1.2 to 2.3 times as enriched as Sol with elements heavier than hydrogen ("metallicity"), based on its abundance of iron[3][4].
The distance from 83 Leonis A where an Earth-type planet would be "comfortable" with liquid water may be centered around 0.81 AU -- between the orbital distances of Venus and Earth in the Solar System. At that distance from the star, such a planet would have an orbital period of around three fourths of an Earth year assuming that Star A has a mass near Sol's.
(Data from SolStation.com)
Notes
- ↑ (Pasinetti-Fracassini et al, 2001)
- ↑ (Johnson and Wright, 1983)
- ↑ (Cayrel de Strobel et al, 1991, page 292)
- ↑ (Extrasolar Planets Encyclopaedia)