Psi Virginis

From Wikipedia, the free encyclopedia
Jump to: navigation, search


ψ Virginis
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Virgo
Right ascension 12h 54m 21.2s
Declination −9° 32' 20"
Apparent magnitude (V) +4.77
Distance 417 ± 44 ly
(128 ± 13 pc)
Spectral type M3-IIICa-1
Other designations
40 Virginis, HR 4902, HD 112142, BD-08 3449, FK5 1335, HIP 62985, SAO 139033, GC 17516

Psi Virginis (ψ Vir, ψ Virginis) is a binary star in the constellation Virgo.

Psi Virginis is a M-type red giant with a mean apparent magnitude of +4.77. It is approximately 417 light years from Earth. It is classified as an irregular variable star and its brightness varies from magnitude +4.73 to +4.96. It is also an eclipsing binary and its close companion, Psi Virginis B, is 0.04 arcseconds away from the giant star. The companion has tentatively been classified as an F6 main sequence dwarf.