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Menkar

A red giant, which changes its luminosity irregularly for only 6%. Although called Alpha Ceti it is less luminous than Beta Ceti.

Constellation: Cetus
Distance: 220 light-years
Spectral class: M1.5
Visual magnitude: 2.53
Luminosity: 1800 * Sun
Mass: 3 * Sun
Diameter: 84 * Sun

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Photo: ESO Online Digitized Sky Survey
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