Rho Capricorni
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Rho Capricorni (ρ Cap, ρ Capricorni) is a binary star[3] in the constellation Capricornus. Sometimes, this star is called by the name Bos, meaning the cow in Latin.[10] In Chinese, Script error: No such module "Lang". (Script error: No such module "Lang".), meaning Ox (asterism), refers to an asterism consisting of β Capricorni, α2 Capricorni, ξ2 Capricorni, π Capricorni, ο Capricorni and ρ Capricorni.[11] Consequently, the Chinese name for ρ Capricorni itself is Script error: No such module "Lang". (Script error: No such module "Lang"., Template:Langx.)[12]
This system is visible to the naked eye with a combined apparent visual magnitude of +4.78.[2] The pair orbit each other with a period of 278 years and an eccentricity of 0.91.[3] Based upon an annual parallax shift of 33.04 mas as seen from the Earth,[1] the system is located about 99 light years from the Sun. It is a thin disk population[6] star system that made its closest approach to the Sun about 1.6 million years ago when it came within Script error: No such module "convert"..[13]
The primary member, component A, is a yellow-white hued, F-type subgiant with an apparent magnitude of 4.97[3] and a stellar classification of F2 IV.[2] This star has 1.5[6] times the mass of the Sun and 1.3 times the Sun's radius. It is radiating 9 times[7] as much luminosity of the Sun from its outer atmosphere at an effective temperature of 6,911 K.[6] The companion, component B, has a visual magnitude of 6.88.[3] The mass ratio is 0.539, meaning the secondary is only 53.9% as massive as the primary.[14]
References
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- ↑ a b c d Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".Script error: No such module "Unsubst".
- ↑ Script error: No such module "citation/CS1".
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- ↑ Template: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, Template:ISBN.
- ↑ Template:In lang AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 5 月 13 日 Template:Webarchive
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "Citation/CS1".
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