Kappa Geminorum
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Gemini |
| Right ascension | 7h 44m 26.8s |
| Declination | 24° 23' 53" |
| Apparent magnitude (V) | 3.57[1] |
| Distance | 143 ly (43.87 pc) |
| Spectral type | G8 IIIa[1] |
| Other designations | |
Kappa Geminorum (κ Gem, κ Geminorum) is a Class G8, fourth-magnitude star in the constellation Gemini. It is a multiple star system located about 140 light-years from Earth. This star is radiating about 78 times the luminosity of the Sun.[1] Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified.[2]
In Chinese astronomy, Kappa Geminorum is called 積薪, Pinyin: Jīxīn, meaning Pile of Firewood, because this star is marking itself and stand alone in Pile of Firewood asterism, Well mansion (see : Chinese constellation).[3] 積薪 (Jīxīn) westernized into Tseih Tsing, but the name Tseih Tsing was designated for χ Gem and μ Cnc by R.H. Allen, with the meaning is "piled-up fuel"[4] In Japanese, 隆博星 (Takahiro-boshi), meaning "Esteemed Nobilty Star," refers to the Japanese description of κ Geminorum.
References
- 1 2 3 Mallik, Sushma V. (December 1999), "Lithium abundance and mass", Astronomy and Astrophysics, 352: 495–507, Bibcode:1999A&A...352..495M
- ↑ Garrison, R. F. (December 1993), "Anchor Points for the MK System of Spectral Classification", Bulletin of the American Astronomical Society, 25: 1319, Bibcode:1993AAS...183.1710G, retrieved 2012-02-04
- ↑ (Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 16 日
- ↑ Richard Hinckley Allen: Star Names — Their Lore and Meaning: Gemini
External links
- "HD 62345 -- Star in Double System". SIMBAD Astronomical Database. Retrieved 2006-12-09.