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|List of stars in Sagittarius|
|Right ascension:||19 h|
|Area:||867 sq. deg. (15th)|
|Main stars:||12, 8|
|Stars known to have planets:||25|
|Brightest star:||ε Sgr (Kaus Australis) (1.79m)|
|Nearest star:||Ross 154 ( ly)|
|Visible at latitudes between +55° and −90°
Best visible at 21:00 (9 p.m.) during the month of August
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.
- Levy, David H. 2005. Deep sky objects. Prometheus Books. ISBN 978-1-59102-361-6