Epsilon Cephei
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Cepheus |
| Right ascension | 22h 15m 1.68s |
| Declination | +57° 02' 36.5" |
| Apparent magnitude (V) | 4.18 |
| Absolute magnitude (V) | 2.13 |
| Distance | 84 ly (25.76 pc) |
| Spectral type | F0IV |
| Other designations | |
Epsilon Cephei (ε Cep, ε Cep) is a Class F0, fourth-magnitude star in the constellation Cepheus. Epsilon Cephei is a yellow-white, Delta Scuti variable star, located about 85 light-years from Earth. It varies between magnitudes 4.15 and 4.21 every 59 minutes.[1]
Naming
In Chinese, 螣蛇 (Téng Shé), meaning Flying Serpent, refers to an asterism consisting of ε Cephei, α Lacertae, 4 Lacertae, π2 Cygni, π1 Cygni, HD 206267, β Lacertae, σ Cassiopeiae, ρ Cassiopeiae, τ Cassiopeiae, AR Cassiopeiae, 9 Lacertae, 3 Andromedae, 7 Andromedae, 8 Andromedae, λ Andromedae, κ Andromedae, ι Andromedae, and ψ Andromedae. Consequently, ε Cephei itself is known as 螣蛇九 (Téng Shé jiǔ, English: the Ninth Star of Flying Serpent)[2]
References
- ↑ Watson, Christopher (4 January 2010). "Epsilon Cephei". AAVSO Website. American Association of Variable Star Observers. Retrieved 21 July 2014.
- ↑ (Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 7 日
- "HD 211336 -- Variable Star of delta Sct type". SIMBAD Astronomical Database. Retrieved 2007-03-01.
External links
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