PIX4568412: Open cluster M11 in the ecu de sobieski - M11 open cluster in Scutum - M11, NGC 6705, is an open cluster especially compact and rich in stars (about 3000), located in the constellation Ecu de Sobieski. M11 is one of the most condensed open clusters in the sky. An intriguing and tantalizing sight in binoculars, it is wonderful in a telescope, and is many observer's favorite open cluster. Located in the constellation of Scutum, it is sometimes mistaken for a loose globular cluster. M11 is also called the “” Wild Duck Cluster”” because of it's resemblance to a flight of wild ducks when viewed in a telescope. M11, with an overall brightness of magnitude 5.8, contains as many as 500 stars ranging from 8th magnitude down to 14th magnitude / Bridgeman Images
PIX4568423: Region around the open cluster M11 in the ECU of Sobieski - M11 region in Scutum - M11 (NGC 6705), below, is a particularly compact open cluster and rich in stars (about 3000), located in the constellation of the Ecu of Sobieski. Near him, many dark nebulae. NGC 6705 also known as Messier 11 or the Wild Duck Cluster is an open cluster in the constellation Scutum. It is one of the richest and most compact of the known open clusters, containing about 3000 stars. Top, dark nebulae are visible / Bridgeman Images
PIX4568469: Region around the open cluster M11 in the ECU of Sobieski - M11 region in Scutum - M11 (NGC 6705), in the center, is an open cluster especially compact and rich in stars (about 3000), located in the constellation of the Ecu of Sobieski. Near him, many dark nebulae. NGC 6705 also known as Messier 11 or the Wild Duck Cluster is an open cluster in the constellation Scutum. It is one of the richest and most compact of the known open clusters, containing about 3000 stars. Top, dark nebulae are visible / Bridgeman Images
PIX4568504: Star cluster NGC 6791 in Lyra - Open cluster NGC 6791 in Lyra - NGC 6791 is one of the oldest and largest open clusters; it contains about 10,000 stars. Here, a detail of the cluster obtained by the Hubble space telescope. The stars present would be 8 billion years old. A galaxy in the background is also visible at the top left. NGC 6791 is one of the oldest and largest open clusters known, about 10 times larger than most open clusters and containing roughly 10,000 stars. The cluster is located 13 000 light years in the constellation Lyra. The full Hubble Advanced Camera for Surveys field is full of stars estimated to be 8 billion years old. Two background galaxies can be seen at upper left / Bridgeman Images
PIX4568688: Open Cluster of Pleiades - The Pleiades star cluster - The Pleiades cluster is a cluster of about 500 young stars nees 150 million years ago. Visible in the constellation Taurus, this cluster is 440 years from the Earth. Object number 45 in Messier's catalog is the Pleiades, also know as the Seven Sisters for the seven stars that can be easily seen with excellent eyesight.The Pleiades is a relatively nearby open cluster, which according to new data from the Hipparcos satellite is located at a distance of 370 light years. The cluster is surrounded by blue nebulosity illuminated by the light reflected from the nearby stars. Astro - Physic's 130EDT F/8 Triplet Refractor working at f/6 two 20 minute exposures / Bridgeman Images
PIX4568751: Hyades and Pleiades open clusters - Hyades and Pleiades open clusters - The Hyades cluster, on the left, with the brilliant star Aldebaran. On the right, the Pleiades cluster. These two clusters belong to the constellation of the Taurus of which Aldebaran is the brightest star; it is a red giante. The Hyades is seen at left, containing the bright star Aldeberan. The Pleiades is at right. Both are open clusters in the constellation of Tauru / Bridgeman Images
PIX4568852: Open Cluster of Pleiades - The Pleiades star cluster - The Pleiades cluster is a cluster of about 500 young stars nees 150 million years ago. Visible in the constellation Taurus, this cluster is 440 years from the Earth. The Pleiades are one of the finest and nearest examples of a reflection nebula associated with a cluster of young stars. The cluster itself is a group of many hundreds of stars about 400 light years from Earth in the northern constellation of Taurus and has been recognised since ancient times. Seven of the brightest stars are quite easy to see with the unaided eye and bear the names of the Seven Sisters, the daughters of Atlas. The nebulosity seen here is light reflected from the particles in a cloud of cold gas and dust into which the cluster has drifted. It appears blue because these tiny interstellar particles scatter blue light more efficiently than the longer wavelengths of red light and it is streaky because of the distribution of dust particles in space / Bridgeman Images
PIX4568984: Pleiades open cluster - The Pleiades star cluster - The Pleiades star cluster contains about 500 stars formed 100 million years ago. It is located 440 light years from Earth, in the constellation Taurus. Mosaic of 8 images obtained with a telescope of 30 cm in diameter.20h of pose. M45, the Pleiades, is a beautiful open cluster in Taurus surrounded by reflection nebulosity. The cluster has been known since ancient times and contains six bright stars that can easily be seen with the unaided eye, and 500 stars total, most too faint to be seen. The blue nebulosity is visible by starlight reflected off of dust in space. The cluster is located about 440 light years from the Earth and is estimated to be about 100 million years old / Bridgeman Images
PIX4568008: Open cluster M47 in Puppis - Open star cluster M47 in Puppis - M47 (NGC 2422) is a cluster located about 1600 years ago - light that contains about fifty stars. M47 (NGC 2422) is an open cluster in the constellation Puppis, and was known to several observers before being independently discovered by Messier. A coarse bright cluster of some 50 stars, it can be seen by the suitably primed naked eye at a good dark location, as a dim fuzzy spot. About 1600 light - years away, it is spread over an area about that of the full moon (30 arc minutes across), or some 14 light - years linearly / Bridgeman Images
PIX4568254: Open cluster NGC 4755 - Jewel box - The Jewel Box cluster - The NGC 4755 cluster is located in the constellation of the Southern Cross at a distance of 7800 years - light from Earth. The bright orange star is Kappa Crucis, a supergiant red star. This cluster contains about fifty stars formed about 14 million years ago. NGC4755 (Caldwell 94) is called the Jewel Box, based on John Herschel's comment in the 1830's that it looked like a superb piece of jewelry. There are about 50 stars in this cluster which formed some 14 million years ago. Most of the cluster members are blue giants which in a few million years will exhaust their hydrogen fuel and become red giants on their way to a cataclysmic end as supernovae. One red giant can already be seen at the center of the cluster / Bridgeman Images
PIX4568290: Open cluster NGC 6231 in Scorpio - Open star cluster NGC 6231 in Scorpius - NGC 6231 is a cluster of stars very young, about eight million years old. Close to the center of the Scorpius OB association is the cluster NGC 6231. This group is gravitationally bound and it is very young, with an age of about 8 million years. The cluster is also very luminous and its radiation affects a vast volume of space / Bridgeman Images
PIX4568304: Open clusters M6 and M7 in Scorpio - Open clusters M6 and M7 in Scorpius - The star clusters M6 (NGC 6405), at the bottom right, and M7 (NGC 6475), at the left center, are two open clusters located in the constellation Scorpio. Star clusters M6 (NGC 6405), bottom right, and M7 (NGC 6475), center left, are two open clusters located in the Scorpius constellation / Bridgeman Images
PIX4568321: Open cluster M6 in Scorpio - Open star cluster M6 in Scorpius - M6 (NGC 6405) is visible to the naked eye in the constellation Scorpio. Its stars are estimated to be between 50 and 100 million years old. The open cluster M6 (NGC 6405) is also called the Butterfly cluster. The open star cluster M6, (NGC 6405), is also known as the Butterfly Cluster. M6 is visible to the naked eye in the constellation Scorpius. M6 is variously estimated as between 50 and 100 million years old / Bridgeman Images
PIX4568330: Open cluster M7 in Scorpio - Open cluster M7 in Scorpius - This cluster contains a hundred stars and is located about 780 years from Earth. His stars are 220 million years old. This cluster is roughly 780 light years from Earth. Its stars are about 220 million year - old / Bridgeman Images