Английская Википедия:Iota Leonis
Шаблон:Short description Шаблон:Starbox begin Шаблон:Starbox image Шаблон:Starbox observe Шаблон:Starbox character Шаблон:Starbox astrometry Шаблон:Starbox orbit Шаблон:Starbox detail Шаблон:Starbox catalog Шаблон:Starbox reference Шаблон:Starbox end
Iota Leonis, Latinized from ι Leonis, is a triple star system in the constellation Leo. The system is fairly close to the Sun, at only 79 light-years (24.2 parsecs) away, based on its parallax.[1] The system has a combined apparent magnitude of 4.00[2] making it faintly visible to the naked eye. It is moving closer to the Sun with a radial velocity of −10 km/s.[3]
Iota Leonis has a spectral type of F3 IV,[4] matching that of an F-type subgiant star. It is a spectroscopic binary, which means it is a binary star with components that are too close together to be able to resolve individually through a telescope. In this case, light from only the primary star can be detected, and it is considered single-lined.[4]
The third component in the star system is designated Iota Leonis B. It orbits the central pair almost every 200 years, and with its perihelion passage in 1948, the separation between the two is steadily growing.[5] Iota Leonis B has a mass approximately 8% greater than that of the Sun.[5] It is a G-type main-sequence star, like the Sun.[6]
Name
In Chinese, Шаблон:Lang (Шаблон:Lang), meaning Right Wall of Supreme Palace Enclosure, refers to an asterism consisting of ι Leonis, β Virginis, σ Leonis, θ Leonis and δ Leonis.[7] Consequently, the Chinese name for ι Leonis itself is Шаблон:Lang (Шаблон:Lang, Шаблон:Lang-en.),[8] representing Шаблон:Lang (Шаблон:Lang), meaning The Second Western General.[9] 西次將 (Xīcìjiāng), spelled Tsze Tseang by R.H. Allen, means "the Second General" [10]
See also
References
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- ↑ Шаблон:Cite simbad
- ↑ Шаблон:In lang 中國星座神話, written by 陳久金. Published by 台灣書房出版有限公司, 2005, Шаблон:ISBN.
- ↑ Шаблон:In lang 香港太空館 - 研究資源 - 亮星中英對照表 Шаблон:Webarchive, Hong Kong Space Museum. Accessed on line November 23, 2010.
- ↑ Шаблон:In lang English-Chinese Glossary of Chinese Star Regions, Asterisms and Star Name Шаблон:Webarchive, Hong Kong Space Museum. Accessed on line November 23, 2010.
- ↑ Шаблон:Cite web
- Английская Википедия
- F-type subgiants
- Triple star systems
- Spectroscopic binaries
- Suspected variables
- Bayer objects
- Leo (constellation)
- Durchmusterung objects
- Flamsteed objects
- Hipparcos objects
- Henry Draper Catalogue objects
- Bright Star Catalogue objects
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- Википедия
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