Antares - α Scorpii (alpha Scorpii)
Antares, also designated as α Scorpii (alpha Scorpii), is a variable and double supergiant star in the constellation of Scorpius.
Antares visual magnitude is 0.96, making it the 14th brightest star in the sky. Thanks to its high brightness, Antares 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 Antares:
Celestial coordinates and finder chart of Antares
Antares 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 Antares are provided in the following table:
The simplified sky map below shows the position of Antares in the sky:
Visibility of Antares from your location
Today's Antares - α Scorpii (alpha Scorpii) 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 Antares
The image below is a photograph of Antares 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 Antares is -0.01 arcsec per year in Right Ascension and -0.02 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of Antares from the Sun and relative movement
Antares is distant 603.70 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.
Spectral properties of Antares
Antares belongs to spectral class M1 and has a luminosity class of I corresponding to a supergiant star.
The red dot in the diagram below shows where Antares is situated in the Hertzsprung–Russell diagram.
Antares star system properties
Antares is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the Antares double sysyem: