Delta Virginis (δ Vir / δ Virginis) is a red giantstar in the constellationVirgo. It also has the traditional name Auva. According to the Hertzsprung-Russell diagram, a red giant is a large non-main sequence star of stellar classification K or M; so-named because of the reddish appearance of the cooler giants. Examples include Aldebaran and Arcturus. ... The Pleiades star cluster A star is any massive gaseous body in outer space just like the Sun. ... Orion is a remarkable constellation, visible from most places on the globe (but not always the whole year long). ... See VIRGO (physics) for a French-Italian project in physics. ...
It has a spectral type of M3-III, and an magnitude of 3.38, bright enough to be seen with the naked eye. In astronomy, stellar classification is a classification of stars based initially on photospheric temperature and its associated spectral characteristics, and subsequenly refined in terms of other characteristics. ... The apparent magnitude (m) of a star, planet or other heavenly body is a measure of its apparent brightness; that is, the amount of light received from the object. ... A naked eye is a figure of speech, referring to human eyes unaided by enhancing equipment such as a telescope or binoculars. ...
Delta Virginis is a possible binary star, as an 11th magnitude star is located only 80 arcseconds from it. This type K dwarf is believed to have an orbital period of over 200,000 years, but this has not been confirmed. Binary star A binary star system consists of two stars both orbiting around their barycenter. ... A second of arc or arcsecond is a unit of angular measurement which comprises one-sixtieth of an arcminute, or 1/3600 of a degree of arc or 1/1296000 ≈ 7. ...
Other designations
HD 112300, HR 4910, NSV 06026, SAO 119674, FK5 484, WDS 12556+0324 The Henry Draper Catalogue is an astronomy catalogue with astrometric and spectroscopic data about more than 225,000 stars. ... In astronomy, many stars are referred to simply by catalogue numbers. ...
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