Alula Australis - ξ Ursae Majoris (xi Ursae Majoris)
Alula Australis, also designated as ξ Ursae Majoris (xi Ursae Majoris), is a variable and multiple hypergiant star in the constellation of Ursa Major.
Alula Australis visual magnitude is 4.41. Because of its moderate brightness, Alula Australis 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 Alula Australis:
Celestial coordinates and finder chart of Alula Australis
Alula Australis is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of Alula Australis are provided in the following table:
The simplified sky map below shows the position of Alula Australis in the sky:
Visibility of Alula Australis from your location
Today's Alula Australis - ξ Ursae Majoris (xi Ursae Majoris) 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 Alula Australis
The image below is a photograph of Alula Australis 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 Alula Australis is -0.43 arcsec per year in Right Ascension and -0.586 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.
Distance of Alula Australis from the Sun and relative movement
Alula Australis is distant 33.96 light years from the Sun and it is moving towards the Sun at the speed of 16 kilometers per second.
Spectral properties of Alula Australis
Alula Australis belongs to spectral class G0 and has a luminosity class of V corresponding to a hypergiant star.
The red dot in the diagram below shows where Alula Australis is situated in the Hertzsprung–Russell diagram.
Alula Australis star system properties
Alula Australis is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the Alula Australis double sysyem: