The stars in the Big Dipper and Little Dipper help navigators locate the North Star. Following the five stars in the Five Star Trail—the municipalities of Hempfield Township, Youngwood, South Greensburg, Southwest Greensburg, and Greensburg—takes travelers on a more northeastern tack. All five towns in the constellation partnered to create the nearly 7.8-mile trail southeast of Pittsburgh.
Following the concept of the Five Star trail these caches will be named for different constellations.
The constellation was created by the Dutch astronomer Petrus Plancius from the observations of Dutch navigators Pieter Dirkszoon Keyser and Frederick de Houtman in the late 16th century. It was first depicted in a celestial atlas in 1603, in Johann Bayer’s Uranometria.
Musca has several notable stars and deep sky objects, among them Nova Muscae 1991, the binary system with a black hole, the Spiral Planetary Nebula (NGC 5189), the Hourglass Nebula (MyCn 18), the globular clusters NGC 4833 and NGC 4372 and the Dark Doodad Nebula.
Musca is the 77th constellation in size, occupying an area of 138 square degrees. It is located in the third quadrant of the southern hemisphere (SQ3) and can be seen at latitudes between +10° and -90°. The neighboring constellations are Apus, Carina, Centaurus, Chamaeleon, Circinus and Crux.