ρ Gruis (rho Gruis)

ρ Gruis is a double hypergiant star in the constellation of Grus.

ρ Gruis visual magnitude is 4.85. Because of its moderate brightness, ρ Gruis should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.

The proper motion of ρ Gruis is 0.006 arcsec per year in Right Ascension and -0.095 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Key facts about ρ Gruis

Celestial coordinates and finder chart of ρ Gruis

ρ 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 ρ Gruis are provided in the following table:

The simplified sky map below shows the position of ρ Gruis in the sky:

Visibility of ρ Gruis from your location

ρ Gruis (rho Gruis) is currently not visible from Greenwich, United Kingdom

Distance of ρ Gruis from the Sun and relative movement

ρ Gruis is distant 221.62 light years from the Sun and it is moving far from the Sun at the speed of 29 kilometers per second.

Spectral properties of ρ Gruis

ρ Gruis belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.

The red dot in the diagram below shows where ρ Gruis is situated in the Hertzsprung–Russell diagram.

ρ Gruis star system properties

ρ Gruis is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the ρ Gruis double sysyem:

Alternative designations of ρ Gruis