Monoceros: A faint constellation on the celestial equator, defined by the Dutch cartographer Petrus Plancius in the 17th century.
Stars: Monoceros contains only a few fourth magnitude stars, such as Alpha, Beta, and Gamma Monocerotis. It also hosts some notable variable stars, such as V838 Monocerotis, Plaskett's Star, and Scholz's Star.
Exoplanets: Monoceros is the location of the CoRoT-7 system, which contains two super-Earth exoplanets discovered in 2009.
Nebulae and clusters: Monoceros contains many clusters and nebulae, such as the Rosette Nebula, the Christmas Tree Cluster, the Cone Nebula, and Hubble's Variable Nebula.
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