- One of the faint and obscure constellations of the southern sky introduced by the Frenchman Nicolas Louis de Lacaille after his sky-mapping trip to the Cape of Good Hope in 1751–52. It was originally called le Telescope on Lacaille’s first planisphere published in 1756 but was Latinized to Telescopium on the second edition of 1763.
- Lagoon Nebula (Wikipedia)
The Lagoon Nebula (catalogued as Messier 8 or M8, NGC 6523, Sharpless 25, RCW 146, and Gum 72) is a giant interstellar cloud in the constellation Sagittarius. It is classified as an emission nebula and has an H II region.