Mu Ceti

Mu Ceti A

Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Ceti
Right ascension	02^h 44^m 56.0^s
Declination	10° 06′ 51″
Apparent magnitude (V)	+4.27 [combined]
Characteristics
Spectral type	F 0V[1]
Astrometry
Distance	84 ly (? pc)
Absolute magnitude (MV)	+2.21
Details
Mass	1.6 M☉
Radius	1.7 R☉
Luminosity	7.5 L☉
Temperature	7300 K
Age	3.3 Gyr
Other designations
87 Ceti, HD 17094, HIP 12828, HR 123
Database references
SIMBAD	data
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.

References

1. Jim Kaler (Dec 21, 2007). "Mu Ceti".
2. (Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 11 日