Epoch J2000.0 Equinox J2000.0
|Right ascension||02h 44m 56.0s|
|Declination||10° 06′ 51″|
|Apparent magnitude (V)||+4.27 [combined]|
|Spectral type||F0 V|
|Absolute magnitude (MV)||+2.17|
|Rotational velocity (v sin i)||±2.345.1 km/s|
Mu Ceti (μ Ceti) is a binary system located in the constellation Cetus. Mu Ceti is a quadruple visual star system. The combined apparent magnitude of the system is +4.27, and is located 84 light years from the Sun.
In Chinese, 天囷 (Tiān Qūn), meaning Circular Celestial Granary, refers to an asterism consisting of α Ceti, κ1 Ceti, λ Ceti, μ Ceti, ξ1 Ceti, ξ2 Ceti, ν Ceti, γ Ceti, δ Ceti, 75 Ceti, 70 Ceti, 63 Ceti and 66 Ceti. Consequently, Mu Ceti itself is known as the Fourth Star of Circular Celestial Granary.
The other components, Mu Ceti B, C and D are G3V, G2V and G6V respectively. The dimmer components were all discovered during occultations of Mu Ceti by the Moon. One of them orbits at a period of 1202 days.
- Jim Kaler (Dec 21, 2007). "Mu Ceti".
- Reiners, A. (January 2006), "Rotation- and temperature-dependence of stellar latitudinal differential rotation", Astronomy and Astrophysics, 446 (1): 267–277, Bibcode:2006A&A...446..267R, arXiv: , doi:10.1051/0004-6361:20053911.
- (in Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 11 日