σ Virginis (sigma Virginis)
σ Virginis is a variable giant star in the constellation of Virgo.
σ Virginis visual magnitude is 4.8. Because of its moderate brightness, σ Virginis should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.
The table below summarizes the key facts about σ Virginis:
Celestial coordinates and finder chart of σ Virginis
σ Virginis is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of σ Virginis are provided in the following table:
The simplified sky map below shows the position of σ Virginis in the sky:
Visibility of σ Virginis from your location
Today's σ Virginis (sigma Virginis) rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):
Digitized Sky Survey image of σ Virginis
The image below is a photograph of σ Virginis from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of σ Virginis is -0.005 arcsec per year in Right Ascension and 0.013 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of σ Virginis from the Sun and relative movement
σ Virginis is distant 540.63 light years from the Sun and it is moving towards the Sun at the speed of 27 kilometers per second.
Spectral properties of σ Virginis
σ Virginis belongs to spectral class M1 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where σ Virginis is situated in the Hertzsprung–Russell diagram.