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Sagittarius (constellation) facts for kids

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Abbreviation Sgr
Genitive Sagittarii
Pronunciation /ˌsæˈtɛəriəs/, genitive /ˌsæˈtɛəri./
Symbolism the Archer
Right ascension 19
Declination −25
Quadrant SQ4
Area 867 sq. deg. (15th)
Main stars 12, 8
Stars with planets 25
Stars brighter than 3.00m 7
Stars within 10.00 pc (32.62 ly) 2
Brightest star ε Sgr (Kaus Australis) (1.79m)
Nearest star Ross 154
(9.69 ly, 2.97 pc)
Messier objects 15
Visible at latitudes between +55° and −90°.
Best visible at 21:00 (9 p.m.) during the month of August.
Sagittarius constellation detail long exposure
An image showing Sagittarius.
Messier 54 HST
Messier 54 was the first globular cluster found outside the Milky Way

The constellation Sagittarius (meaning "the Archer") is a group of stars in one area of the night sky. The stars are in the shape of a centaur archer. This constellation is part of the Western zodiac.

The Milky Way is at its densest near Sagittarius, as this is where the galactic center lies. Consequently, Sagittarius contains many star clusters and nebulae. One of the brightest of the star clusters is Messier 55, about 7.5° west of δ Sgr.

The complex radio source Sagittarius A is here. Astronomers believe that one of its components, known as Sagittarius A*, is associated with a supermassive black hole at the center of the galaxy, with a mass of 2.6 million solar masses.

Deep-sky objects

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