Displaying items by tag: Open Cluster
Wide-field mosaic of Messier 8 The Lagoon Nebula and Messier 20 The Trifid Nebula. Messier 8 is an emission nebula HII region in Sagittarius. Several collapsing clouds know as Bok globules are visible which may eventually collapse down to form new stars. Messier 20 is highlighted by three different types of nebula. The red parts are an emission nebula, the blue parts are a reflection nebula, and the dark bands are dark nebula which are clouds of dust and gas blocking light from behind.
Messier 17 is a H II region located in Sagittarius. Similar to the Orion Nebula, but more massive and viewed edge on. The main part of the nebula spans some 15 light years and is home to some current 800 stars with many more thousands being born in outer layers. At around 1 million years old, it is forming a young open cluster of stars.
Messier 16 or as commonly call the Eagle Nebula, or Star Queen Nebula is an open cluster and nebula located in the constellation of Serpens. The central spires of dust and gas were made famous by the Hubble's "Pillars of Creation" image. The pillars and other regions of the nebula host new star formation. The central spire is some 9.5 light years in length. The age of the cluster is around 5 million years.
An open cluster located Scorpius. The name derives from Robert Burnham's description that it resembles an outline of a butterfly with open wings. The cluster is estimated to contain up to 300 members, and its age is 50 to 100 million years old. Like most open clusters, the stars will disperse over millions of years and become more background stars in Scorpius.
M11 is an open cluster located in the constellation of Scutum. The name comes from a v shape from the brighter stars that resemble a flock of ducks. One of the densest and most compact open clusters known. It contains around 2,900 members and an estimated 220 million years old. The backdrop is from the Milky Way Galaxy near the Scutum Star Cloud.
NGC2281 Open cluster located in Auriga, located some 1,819 light years away with an estimated age of 610 million years. Es127/Zwo1600 scope/camera setup.
Messier 24, one of the Messier objects that isn't a singular deep sky object, it is a dense concentration of stars located in the Sagittarius arm of our Milky Way Galaxy, hence it is often referred to the as the Sagittarius Star Cloud. A collection of millions of stars that can be seen through a gap of the Milky Way dust lanes. Also visible is NGC 6603 an open cluster located in the field of view, and various dark nebula that blot out background stars.
Messier 44, or sometimes called the Beehive, is a open cluster located in the constellation of Cancer. At around 600 light years away, it is one of the closest open clusters to us along with the Pleiades and Hyades. M44 shares a common proper motion with the Hyades which suggests a common origin, and both have estimated age of around 600 million years. The cluster contains more than 1,000 stars with many of them being red dwarfs (68%).
NGC 1027, an open cluster located in Cassiopeia located 3,100 light years away, between the Heart and the Soul nebulae , but not associated with them (7,500ly distance), as is the bright star near the center (179ly distance).