Theta Cassiopeiae
| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Cassiopeia |
| Right ascension | 01h11m06.2s |
| Declination | +55°08′59″ |
| Apparent magnitude (V) | +4.34 |
| Distance | 137 ± 4 ly (42 ± 1 pc) |
| Spectral type | A7V |
| Other designations | |
Theta Cassiopeiae (θ Cas, θ Cassiopeiae) is a star in the constellation Cassiopeia. It has the traditional name Marfark or Marfak, which it shares with μ Cassiopeiae, and the name was from Al Marfik or Al Mirfaq (المرفق), meaning "the elbow".[1]
In Chinese, 閣道 (Gé Dào), meaning Flying Corridor, refers to an asterism consisting of θ Cassiopeiae, ι Cassiopeiae, ε Cassiopeiae, δ Cassiopeiae, ν Cassiopeiae and ο Cassiopeiae.[2] Consequently, θ Cassiopeiae itself is known as 閣道四 (Gé Dào sì, English: the Fourth Star of Flying Corridor.)[3]
θ Cassiopeiae is a white A-type main sequence dwarf with an apparent magnitude of +4.34. It is approximately 137 light years from Earth.
References
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- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ (Chinese) 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.
- ↑ (Chinese) 香港太空館 - 研究資源 - 亮星中英對照表, Hong Kong Space Museum. Accessed on line November 23, 2010.
