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Articles related to "Open Clusters"


Stars cluster together in groups ranging from binary star systems to galactic and globular clusters of stars and at larger scales galaxies and clusters of galaxies.
Sagittarius is jam-packed with observing targets because it lies on the densest part of the Milky Way. Find clusters, nebulae, and more!
Like the fabled unicorns, Monoceros is hard to spot, notable only for its deep-sky objects and not for its stars.
Cancer the Crab holds one of the best open clusters in the sky: the Beehive Cluster, M44.
The biggest of all 88 constellations wraps along the Milky Way low in the spring sky and contains three Messier objects.
The Constellation of Cygnus the Swan is an important summer target because it lies along the Milky Way and holds many deep-sky treasures.
Scutum the Shield is short on stars but provides two Messier star clusters.
The Southern Hemisphere constellations Triangulum Australe and Circinus are home to two decent open clusters.
Aquila's brightest star, Altair, is part of the Summer Triangle. Many dim clusters and nebula pepper this space-borne eagle.
Galaxies like our Milky Way are large groups of stars containing from a few million to about a trillion stars. Galaxies also group together in clusters of galaxies.
Learn the stars, clusters, and nebula of the constellation Aquarius the Water Bearer.
Three of the most prominent star clusters in the sky are best seen in the fall and can be spotted easily without optical aid.
The constellation of Carina the Keel can be seen year-round in the Southern Hemisphere and is filled with Milky Way delights.
Sagitta the Arrow is a constellation found within the Summer Triangle and containing one of Messier's globular clusters.
J.K. Rowling's Harry Potter series has many rich details including the cast of characters, over a dozen of which are astronomically named.
Locksley Hall is one of Tennyson's more popular poems. It contains several astronomical references, showing Tennyson's knowledge of astronomy.
The southern constellations of Lupus and Norma lie along the Milky Way and are made up of mostly dim stars.
Light pollution swamps out the light from deep sky objects, making it difficult to see them. But there are ways to make suburban astronomy more rewarding.
The constellation Scorpius lies on the Milky Way and is filled with stargazing targets.
The constellation of the Big Dog is where you'll find the brightest star in the sky, Sirius. The Dog Star is just one of the many luminous stars in Canis Major.
Find out when spring and daylight saving time start. Follow the moon as it sails past observing targets and catch a bounty of spring galaxies.
Mars reaches opposition in December 2007 as it reaches prime viewing position from Earth and becomes brighter than any star.
November is a great time to preview what's coming into view these next few months. The Hyades, The Pleiades, Orion and Andromeda will all dazzle this winter.
What are the top sights for binoculars? You can view everything from the moon to distant galaxies. Here are a list of the best binocular targets.


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