Mu Ceti

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Mu Ceti A
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Ceti
Right ascension 02h 44m 56.0s
Declination 10° 06′ 51″
Apparent magnitude (V) +4.27 [combined]
Spectral type F 0V[1]
Distance 84[1] ly
(? pc)
Absolute magnitude (MV) +2.21[1]
Mass 1.6[1] M
Radius 1.7[1] R
Luminosity 7.5[1] L
Temperature 7300[1] K
Age 3.3[1] Gyr
Other designations
87 Ceti, HD 17094, HIP 12828, HR 123
Database references
Exoplanet Archive data

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.[2]

Mu Ceti A is an F0V subgiant, believed to be a Delta Scuti variable star.

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.