σ Hydri (sigma Hydri)

σ Hydri is a sub-giant star in the constellation of Hydrus.

σ Hydri visual magnitude is 6.16. Because of its reltive faintness, σ Hydri should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of σ Hydri is 0.096 arcsec per year in Right Ascension and 0.06 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Key facts about σ Hydri

Celestial coordinates and finder chart of σ Hydri

σ Hydri is situated close to the southern celestial pole and, as such, it is easilty visible for most part of the year from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of σ Hydri are provided in the following table:

The simplified sky map below shows the position of σ Hydri in the sky:

Visibility of σ Hydri from your location

σ Hydri (sigma Hydri) is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of σ Hydri from the Sun and relative movement

σ Hydri is distant 134.71 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

Spectral properties of σ Hydri

σ Hydri belongs to spectral class F5 and has a luminosity class of IV corresponding to a sub-giant star.

The red dot in the diagram below shows where σ Hydri is situated in the Hertzsprung–Russell diagram.

Alternative designations of σ Hydri