Epoch J2000.0 Equinox J2000.0
|Right ascension||02h 50m 41.8s|
|Declination||+55° 53' 44"|
|Apparent magnitude (V)||+3.76|
|Spectral type||K3 Ib-IIa|
Eta Persei (Eta Per, η Persei, η Per) is a star in the constellation Perseus. It also has the traditional name Miram. 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.
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.
- 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.)
- 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