Apparent magnitude
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Apparent magnitude is a measure of the brightness of a star, astronomical object or other celestial objects like artificial satellites. Its value depends on its intrinsic luminosity, its distance, and
Asteroid 65 Cybele and two stars in the constellation Aquarius, with their magnitudes labeled
Image of 30 Doradus taken by ESO's VISTA. This nebula has a visual magnitude of 8.
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
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 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 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).