Mu Serpentis

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μ Serpentis
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Serpens
Right ascension 15h 49m 37.2s
Declination −03° 25' 49"
Apparent magnitude (V) +3.54
Absolute magnitude (V) +0.14
Distance 156 ± 6 ly
(48 ± 2 pc)
Spectral type A0V
Other designations
32 Serpentis, HR 5881,
HD 141513, SAO 140787,
HIP 77516

Mu Serpentis (μ Ser, μ Serpentis) is a star in the constellation Serpens, in its head (Serpens Caput). Mu Serpentis is a white A-type main sequence dwarf with an apparent magnitude of +3.54. It is approximately 156 light years from Earth.

In Chinese astronomy, Mu Serpentis is called 天乳, Pinyin: Tiānrǔ, meaning Celestial Milk, because this star is marking itself and stand alone in Celestial Milk asterism, Root mansion (see : Chinese constellation).[1]