σ2 Gruis (sigma2 Gruis)
σ2 Gruis is a double main-sequence star in the constellation of Grus.
σ2 Gruis visual magnitude is 5.86. Because of its reltive faintness, σ2 Gruis should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.
The table below summarizes the key facts about σ2 Gruis:
Celestial coordinates and finder chart of σ2 Gruis
σ2 Gruis is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of σ2 Gruis are provided in the following table:
The simplified sky map below shows the position of σ2 Gruis in the sky:
Visibility of σ2 Gruis from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
σ2 Gruis (sigma2 Gruis) is currently not visible from Greenwich, United Kingdom
Digitized Sky Survey image of σ2 Gruis
The image below is a photograph of σ2 Gruis 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 σ2 Gruis is 0.038 arcsec per year in Right Ascension and -0.075 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of σ2 Gruis from the Sun and relative movement
σ2 Gruis is distant 219.38 light years from the Sun and it is moving far from the Sun at the speed of 15 kilometers per second.
Spectral properties of σ2 Gruis
σ2 Gruis belongs to spectral class A1 and has a luminosity class of V corresponding to a main-sequence star.
The red dot in the diagram below shows where σ2 Gruis is situated in the Hertzsprung–Russell diagram.
σ2 Gruis star system properties
σ2 Gruis is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the σ2 Gruis double sysyem: