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Lambda Ceti
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Lambda Ceti
Lambda Ceti is a star in the equatorial constellation of Cetus. Its name is a Bayer designation that is Latinized from λ Ceti, and abbreviated Lambda Cet or λ Cet. Historically, the star bore the traditional name Menkar, although today that name is more commonly associated with α Ceti. With an apparent visual magnitude of 4.71, it is faintly visible to the naked eye. Based on parallax measurement of 7.32 mas as seen from Earth, it is located at a distance of approximately 446 light-years (137 pc) from the Sun. The star is drifting further away with a line of sight velocity component of 10 km/s.
This star, along with α Cet (Menkar), γ Cet (Kaffaljidhma), δ Cet, μ Cet, ξ1 Cet and ξ2 Cet were Al Kaff al Jidhmah, "the Part of a Hand".
In Chinese, 天囷 (Tiān Qūn), meaning Circular Celestial Granary, refers to an asterism consisting of λ Ceti, α Ceti, κ1 Ceti, μ Ceti, ξ1 Ceti, ξ2 Ceti, ν Ceti, γ Ceti, δ Ceti, 75 Ceti, 70 Ceti, 63 Ceti and 66 Ceti. Consequently, the Chinese name for λ Ceti itself is 天囷三 (Tiān Qūn sān, English: the Third Star of Circular Celestial Granary.)
Lambda Ceti is a blue giant star with stellar classification B6III. It is an estimated 100-125 million years old, and is spinning rapidly with a projected rotational velocity of 131 km/s. It has five times the mass of the Sun and 5.4 times the Sun's radius. The star is radiating 920 times the Sun's luminosity at an effective temperature of 13,940 K.
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Lambda Ceti
Lambda Ceti is a star in the equatorial constellation of Cetus. Its name is a Bayer designation that is Latinized from λ Ceti, and abbreviated Lambda Cet or λ Cet. Historically, the star bore the traditional name Menkar, although today that name is more commonly associated with α Ceti. With an apparent visual magnitude of 4.71, it is faintly visible to the naked eye. Based on parallax measurement of 7.32 mas as seen from Earth, it is located at a distance of approximately 446 light-years (137 pc) from the Sun. The star is drifting further away with a line of sight velocity component of 10 km/s.
This star, along with α Cet (Menkar), γ Cet (Kaffaljidhma), δ Cet, μ Cet, ξ1 Cet and ξ2 Cet were Al Kaff al Jidhmah, "the Part of a Hand".
In Chinese, 天囷 (Tiān Qūn), meaning Circular Celestial Granary, refers to an asterism consisting of λ Ceti, α Ceti, κ1 Ceti, μ Ceti, ξ1 Ceti, ξ2 Ceti, ν Ceti, γ Ceti, δ Ceti, 75 Ceti, 70 Ceti, 63 Ceti and 66 Ceti. Consequently, the Chinese name for λ Ceti itself is 天囷三 (Tiān Qūn sān, English: the Third Star of Circular Celestial Granary.)
Lambda Ceti is a blue giant star with stellar classification B6III. It is an estimated 100-125 million years old, and is spinning rapidly with a projected rotational velocity of 131 km/s. It has five times the mass of the Sun and 5.4 times the Sun's radius. The star is radiating 920 times the Sun's luminosity at an effective temperature of 13,940 K.
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