Messier 23 [SEP] constellation
Messier 23
Messier 23, also known as NGC 6494, is an open cluster of stars in the southern constellation of Sagittarius. It was discovered by Charles Messier on June 20, 1764. M23 can be found with binoculars or a modestly sized telescope. The cluster is positioned in front of "an extensive gas and dust network", although it is unclear if there is an association between the two. It is located near the ecliptic and thus is subject to lunar occultations.
The cluster is located 2,050 light
Messier 83
Messier 83 or M83, also known as the Southern Pinwheel Galaxy and NGC 5236, is a barred spiral galaxy approximately 15 million light-years away in the constellation Hydra. Nicolas Louis de Lacaille discovered M83 on February 23, 1752 at the Cape of Good Hope. Charles Messier added it to his catalogue of nebulous objects (now known as the Messier Catalogue) in March 1781. This is one of the closest and brightest barred spiral galaxies in the sky, making it visible with binoculars. Its nickname of