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Acrux
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Acrux is a multiple star system and the brightest star in the southern constellation of Crux. It has the Bayer designation α Crucis, which is Latinised to Alpha Crucis and abbreviated Alpha Cru or α C
The constellation Crux. Acrux is the star at the foot of the cross.
The constellation Crux. Acrux is the star at the foot of the cross.
Image of α Crucis (HD 108248/9), α Crucis C (HD 108250), and the bow shock nebula from the Spitzer Space Telescope
Image of α Crucis (HD 108248/9), α Crucis C (HD 108250), and the bow shock nebula from the Spitzer Space Telescope
Alpha Centauri
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Alpha Centauri is a star system in the southern constellation of Centaurus. It consists of three stars: Rigil Kentaurus, Toliman, and Proxima Centauri. Proxima Centauri is the closest star to the Sun
Acrux
…is the most southerly star of the asterism known as the Southern Cross and is the southernmost first-magnitude star, 2.3 degrees more southerly than Alpha Centauri. This system is located at a distance of 348 light-years (106.7 parsecs) from the Sun. To the naked eye Acrux appears as a single star, but it is…
Alpha Centauri AB (left) forms a triple star system with Proxima Centauri (below, south of, α Centauri AB). (See labelled version)
Alpha Centauri AB (left) forms a triple star system with Proxima Centauri (below, south of, α Centauri AB). (See labelled version)
The Very Large Telescope open to the night sky, with the Milky Way running diagonally across the sky above it and many southern stars and constellatio
The Very Large Telescope open to the night sky, with the Milky Way running diagonally across the sky above it and many southern stars and constellations labelled and connected by lines, including Alpha Centauri and the not visible Proxima Centauri.
Alpha Centauri AB (left) forms a triple star system with Proxima Centauri (below, south of, α Centauri AB), circled in red. The bright star to the rig
Alpha Centauri AB (left) forms a triple star system with Proxima Centauri (below, south of, α Centauri AB), circled in red. The bright star to the right is Beta Centauri.
Orbital plot of Proxima Centauri around the bright apparent star Alpha Centauri AB, with position change marked (in thousands of years).
Orbital plot of Proxima Centauri around the bright apparent star Alpha Centauri AB, with position change marked (in thousands of years).