Eta Persei
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Observation data Epoch J2000.0 Equinox J2000.0 | |
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Constellation | Perseus |
Right ascension | 02h 50m 41.8s |
Declination | +55° 53' 44" |
Apparent magnitude (V) | +3.76 |
Distance | 1331 ly (408 pc) |
Spectral type | K3 Ib-IIa |
Other designations | |
Eta Persei (Eta Per, η Persei, η Per) is a star in the constellation Perseus. It also has the traditional name Miram.[1] Miram belongs to spectral class K3 and has an apparent magnitude of +3.76. It is approximately 1331 light years away from Earth. This star is radiating 35,000 times the luminosity of the Sun.[2]
Name and etymology
- This star, together with δ Per, ψ Per, σ Per, α Per and γ Per has been called the Segment of Perseus.[3]
- In Chinese, 天船 (Tiān Chuán), meaning Celestial Boat, refers to an asterism consisting of η Persei, γ Persei, α Persei, ψ Persei, δ Persei, 48 Persei, μ Persei and HD 27084. Consequently, η Persei itself is known as 天船一 (Tiān Chuán yī, English: the First Star of Celestial Boat.)[4]
References
- ↑ Miram
- ↑ Mallik, Sushma V. (December 1999), "Lithium abundance and mass", Astronomy and Astrophysics 352: 495–507, Bibcode:1999A&A...352..495M
- ↑ Allen, R. H. (1963). Star Names: Their Lore and Meaning (Reprint ed.). New York: Dover Publications Inc. p. 331. ISBN 0-486-21079-0. Retrieved 2012-09-04.
- ↑ (Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 11 日
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