Trapezium cluster. Orion Trapezium Cluster is a tight open cluster of stars in the heart of the Orion Nebula, in the constellation of Orion. It was discovered by Galileo Galilei. [Space Future: futuristicnews.co...]
NGC 2264 and the Christmas Tree cluster. This colour image of the region known as NGC 2264 — an area of sky that includes the sparkling blue baubles of the Christmas Tree star cluster — was created from data obtained by the Wide Field Imager at ESO’s La Silla Observatory. The image shows a region of space about 30 light-years across.
A star cluster once thought to be part of the spectacular Orion Nebula is actually a separate celestial entity. Scientists using the Canada-France-Hawaii Telescope in Hawaii found that the star cluster NGC 1980 is a distinct, massive bunch of stars in front of the Orion nebula, which at a range of 1,500 light-years is Earth's closest known star factory. The cluster is huddled unevenly around the star iota Ori at the southern tip of the sword in the famed Orion constellation.
Starless Nebula NGC6188 in Narrowband by Fred Vanderhaven NGC 6188 is an emission nebula located about 4,000 light years away in the constellation Ara. The bright open cluster NGC 6193, visible to the naked eye, is responsible for a region of reflection nebulosity within NGC 6188.