Lynds' Catalogue of Bright Nebulae is an Astronomical catalogue of bright Nebulae.

Objects listed in the catalogue are numbered with the prefix LBN (Not to be confused with LDN, or Lynds' Catalogue of Dark Nebulae), though, many entries also have other designations, for example, LBN 974, the Orion Nebula

Orion Nebula

The Orion Nebula is a diffuse nebula situated south of Orion's Belt. It is one of the brightest nebulae, and is visible to the naked eye in the night sky. M42 is located at a distance of and is the closest region of massive star formation to Earth. The M42 nebula is estimated to be 24 light...

 is also known as M

Messier object

The Messier objects are a set of astronomical objects first listed by French astronomer Charles Messier in 1771. The original motivation of the catalogue was that Messier was a comet hunter, and was frustrated by objects which resembled but were not comets...

42 and NGC

New General Catalogue

The New General Catalogue of Nebulae and Clusters of Stars is a well-known catalogue of deep sky objects in astronomy. It contains 7,840 objects, known as the NGC objects...

 1976.

Originally compiled in the 1960s by Beverly Lynds. Objects in the catalogue include (among other things) the coordinates of nebulae, brightness from 1-6 (with 1 being the brightness), colour and size and cross-references to other astronomical catalogues if listed elsewhere.