α Lupi (alpha Lupi)
α Lupi is a variable and double giant star in the constellation of Lupus.
α Lupi visual magnitude is 2.3. Thanks to its high brightness, α Lupi 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 α Lupi:
Celestial coordinates and finder chart of α Lupi
α Lupi is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of α Lupi are provided in the following table:
The simplified sky map below shows the position of α Lupi in the sky:
Visibility of α Lupi from your location
α Lupi (alpha Lupi) is currently not visible from Greenwich, United Kingdom [change]
Digitized Sky Survey image of α Lupi
The image below is a photograph of α Lupi 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 α Lupi is -0.021 arcsec per year in Right Ascension and -0.018 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of α Lupi from the Sun and relative movement
α Lupi is distant 547.90 light years from the Sun and it is moving far from the Sun at the speed of 5 kilometers per second.
Spectral properties of α Lupi
α Lupi belongs to spectral class B1 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where α Lupi is situated in the Hertzsprung–Russell diagram.
α Lupi star system properties
α Lupi 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 α Lupi double sysyem: