β Hydri (beta Hydri)
β Hydri is a variable sub-giant star in the constellation of Hydrus.
β Hydri visual magnitude is 2.8. Thanks to its high brightness, β Hydri is clearly visible when observed from locations with dark skyes, and should be also quite easily visible from light polluted areas.
The table below summarizes the key facts about β Hydri:
Celestial coordinates and finder chart of β Hydri
β 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 β Hydri are provided in the following table:
The simplified sky map below shows the position of β Hydri in the sky:
Visibility of β Hydri from your location
Digitized Sky Survey image of β Hydri
The image below is a photograph of β Hydri 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 β Hydri is 2.215 arcsec per year in Right Ascension and 0.324 arcsec per year in Declination and the associated displacement for the next 100 years is represented with the red arrow.
Distance of β Hydri from the Sun and relative movement
β Hydri is distant 24.37 light years from the Sun and it is moving far from the Sun at the speed of 23 kilometers per second.
Spectral properties of β Hydri
β Hydri belongs to spectral class G2 and has a luminosity class of IV corresponding to a sub-giant star.
The red dot in the diagram below shows where β Hydri is situated in the Hertzsprung–Russell diagram.