Eta Virginis

From Wikipedia, the free encyclopedia

η Virginis
Observation data
Epoch J2000.0
Constellation
(pronunciation)
Virgo
Right ascension 12h 19m 54.4s
Declination −0° 40' 01"
Apparent magnitude (V) +3.89
Distance 250 ± 16 ly
(77 ± 5 pc)
Spectral type A2IV
Other designations
Zaniah, Zannakh,
15 Virginis, HR 4689,
HD 107259, BD+00 2926,
FK5 460, HIP 60129,
SAO 138721, GC 16813,
CCDM 12199-0040

Eta Virginis (η Vir / η Virginis) is a star in the constellation Virgo. It also has the traditional name Zaniah.

Zaniah is about 204 light years distant from the Sun, and has apparent magnitude +3.9 and is of spectral type A2IV.

Although the star looks single in any telescope lunar occultations have shown this star to be a very close triple star system consisting of two stars only 0.5 AU apart with a third slightly more distant star.

Because Zaniah is near the ecliptic, it can be occulted by the Moon and (very rarely) by planets. The last occultation by a planet took place on September 27, 1843 by Venus, which will occult it again on November 19, 2445.

[edit] Etymology

The medieval name Zaniah is from the Arabic زاوية zāwiyah "corner".

[edit] External links