Rho Capricorni: Difference between revisions
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Revision as of 08:30, 28 September 2011
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Capricornus |
| Right ascension | 20h28m51.6s |
| Declination | −17°48′49″ |
| Apparent magnitude (V) | +4.77 |
| Distance | 98.7 ± 2.6 ly (30.3 ± 0.8 pc) |
| Spectral type | F2IV |
| Other designations | |
Rho Capricorni (ρ Cap, ρ Capricorni) is a binary star in the constellation Capricornus. It is approximately 98.7 light years from Earth.
Sometimes, this star is called by the name Bos, meaning the cow in Latin[1].
In Chinese, 牛宿 (Niú Su), meaning Ox (asterism), refers to an asterism consisting of β Capricorni, α2 Capricorni, ξ2 Capricorni, π Capricorni, ο Capricorni and ρ Capricorni.[2] Consequently, β Capricorni itself is known as 牛宿六 (Niú Su liù, English: the Sixth Star of Ox.)[3]
The primary component, ρ Capricorni A, is a yellow-white F-type subgiant with an apparent magnitude of +4.77. Its companion, ρ Capricorni B is an eighth magnitude star located 1.013 arcseconds or at least 30 AU from the primary.
References
- ^ http://www.constellationsofwords.com/stars/Bos.html
- ^ Template:Zh icon 中國星座神話, written by 陳久金. Published by 台灣書房出版有限公司, 2005, ISBN 978-986-7332-25-7.
- ^ Template:Zh icon AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 5 月 13 日
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