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NGC2244 - the Heart of the Rosette Nebula The Rosette Nebula (also known as Caldwell 49) is a large, circular H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, the stars of the cluster having been formed from the nebula’s matter. The cluster and nebula lie at a distance of some 5,200 light-years from Earth (although estimates of the distance vary…

NGC2244 - the Heart of the Rosette Nebula The Rosette Nebula (also known as Caldwell 49) is a large, circular H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, the stars of the cluster having been formed from the nebula’s matter. The cluster and nebula lie at a distance of some 5,200 light-years from Earth (although estimates of the distance vary…

The Cygnus Loop Nebula, located 1,500 light years away, is the remnant of a supernova explosion that occurred 5,000 to 8,000 years ago. Photo by NASA.

The Cygnus Loop Nebula, located 1,500 light years away, is the remnant of a supernova explosion that occurred 5,000 to 8,000 years ago. Photo by NASA.

The Cat's Eye Nebula's position in the sky (ground-based image)

The Cat's Eye Nebula's position in the sky (ground-based image)

The Kuiper Belt is home to many of the solar systems comets, asteroids, and dwarf planets. Because it's so far from the Sun, there's much we still don't know about it.

The Kuiper Belt is home to many of the solar systems comets, asteroids, and dwarf planets. Because it's so far from the Sun, there's much we still don't know about it.

Stunning new images from the Hubble Space Telescope reveal gas pillars in the Eagle Nebula.

Stunning new images from the Hubble Space Telescope reveal gas pillars in the Eagle Nebula.

NGC 7380 is an open cluster discovered by Caroline Herschel in 1787. Known as the Wizard Nebula, this object is a reasonably large nebula located in Cepheus.

NGC 7380 is an open cluster discovered by Caroline Herschel in 1787. Known as the Wizard Nebula, this object is a reasonably large nebula located in Cepheus.

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