A globular cluster is a group of old stars that are very close to each other and together are in the form of a sphere. A sphere is in the shape of a circle.
A large, spherical cluster of stars located in the halo of the galaxy.These clusters, containing up to several hundred thousand members, are thought to be among the oldest objects in the galaxy. A to F | G to L | M to R | S to Z
A globular star cluster is a spherical group of up to a million stars held together by gravity. These remote objects lie mostly around the central bulge of spiral galaxies. The brightest globular cluster is Omega Centauri (in the constellation Centaurus); it is easily seen by the naked eye and is magnitude 4.
A ball of a few hundred thousand stars that resides in the halo of our galaxy and other galaxies. These clusters contain stars that evolve separately from galactic stars; thus, globular clusters hold the original recipe of the galaxy. About 250 globular clusters form a spherical halo around our galaxy. M13, a bright globular cluster in Hercules, is a classic example easily seen with binoculars or a small telescope.
Gravitationally bound concentrations of approximately ten thousand to one million stars, spread over a volume of several tens to about 200 light years in diameter. Also see "star cluster" and "open cluster". Ex. M13 - the Great Hercules Globular Cluster.
An enourmous grouping of 25,000 to upwards of over 100,000 old stars. Globular clusters are gravitationally held together and orbit the outer reaches of most, if not all, galaxies.
Globular clusters are groups of several hundred thousand stars all bound together by gravity. There are globular clusters above the disk of the Milky Way, and in the early twentieth century they were used to determine our position in the Milky Way. I J K T U V X Y Z
A spherical bundle of stars that orbits a galaxy as a satellite. Globular clusters are very tightly gravitationally bound, which gives them their spherical shape, and extremely dense (in relative terms) towards their core.
A tight-knit collection of many thousands, sometimes even millions, of old stars usually spread throughout a ball about 10-20 light-years in diameter.
A star cluster that packs hundreds of thousands of stars into a region only about a hundred light-years across. An example of a bright globular cluster is M13.
roughly spherical, moderately dense star cluster of hundreds of thousands or millions of stars often many hundreds of light years across. Most are moderately old (five to fifteen billion years.) Concentration Classes: (most compact) to XII (least compact).
a cluster of stars that is spherical in shape and extremely dense towards its core
a dense, spherical mass of stars which orbit our galaxy
a globular shaped accumulation of hundred thousand to a few million stars
a group of stars kept together with their mutual gravitational attraction
a huge ball of millions of stars all held together by gravity
a spherical bundle of stars ( star cluster ) that orbits a galaxy as a satellite
a spherical collection of hundreds of thousands or even millions of stars buzzing around each other in a gravitationally-bound stellar beehive that is about a hundred light years in diameter
a spherical grouping of stars about a dense galactic center
a spherically symmetrical and compact cluster of stars, the cluster containing from several tens of thousands to perhaps a million stars, and as in clusters in general, these stars are thought to share a common origin
a system of about one million stars that together orbit a galaxy
a tight aggregate of thousands to millions of very old stars
Gravitationally-bound spherical clusters of densely-packed stars, normal found in the halo of galaxies. Globular clusters contain thousands of stars, maybe up to a million. Globular clusters contain old, highly-evolved Population II stars that have low metallicities. A prominent southern hemisphere example is 47 Tucane.
An ancient, spherical, densely populated cluster in orbit around the galaxies halo
A spherical star cluster containing 50,000 to 1 million stars; generally old and metal-poor, globular clusters may be the left over building blocks of galaxy formation.
a spherical cluster of older stars found in the halos of galaxies
Large spherical group of stars bound together by gravity, mostly found in outlying regions of a galaxy.
A huge spherical cluster containing tens of thousands of stars. The stars of a cluster were born together and travel through space together. M13 and M22 are familiar examples.
a compact spherical cluster of predominately older red stars (e.g M13).
Sometimes known more simply as a "globular", this is a spherical collection of stars that orbit a galaxy core as a natural satellite.
Tightly bound, roughly spherical collection of hundreds of thousands, and sometimes millions, of stars spanning about 100 light years. Globular clusters are distributed in the halos around the Milky Way and other galaxies.
A spherical cluster of older stars, often found in galaxies.
A spherical cluster of stars of a common origin. These stars and clusters are often very old.
a roughly spherical congregation of hundreds of thousands of stars; most globular clusters consist of old stars and exist in a galaxy’s halo
A tight, spherical grouping of hundreds of thousands of stars. Globular clusters are composed of older stars, and are usually found around the central regions of a galaxy.
A cluster of about 1 million stars. The distances to globular clusters was debated in 1920. Eventually the distribution on the sky of globular clusters as well as their distance was taken as strong evidence that our Sun is not at the center of our Galaxy.
One of about 120 large spherical star clusters that form a system of clusters centered on the center of the Galaxy.
Dense clusters of stars bound by gravity. Many globular clusters surround galaxies, including our own Milky Way galaxy.
A ball of one hundred thousand to one million stars that resides in the halo of our galaxy and other galaxies. Because globular clusters contain stars that have been physically separated from the main part of the galaxy, they have evolved in relative isolation. As a result, globular clusters still hold the original mix of material that made the galaxy. There are about 250 globular clusters that form a spherical halo around the Milky Way. Messier 13, a bright globular cluster in the constellation Hercules, is a classic example easily seen with binoculars or a small telescope.
spherical cluster of hundreds of thousands to millions of very old stars. The orbits of most globular clusters are very elliptical and oriented in random directions.
A spherically symmetric system of stars typically containing more than 100,000 stars.
A tight cluster of tens of thousands to one million very old stars.
Unlike open clusters which are found within our Galaxy, globular clusters are external to our Galaxy. They are situated within a spherical volume of space surrounding our Galaxy. A globular cluster is a huge (tens to hundreds of light years in diameter) spherical concentration of stars. The density of stars is much higher than in the spiral arms of the Galaxy. This high density means that the gravitational forces within a globular cluster holds the cluster together, against the gravitational force of the Galaxy. They are amongst the oldest objects in the Universe, 10,000 million years or more in age. They therefore contain stars that are generally much older than those in the open clusters of the Galaxy. Some globulars are bright enough to be seen without optical aid e.g. omega Centauri and 47 Tucanae in the southern hemisphere skies. Probably the best known of the northern hemisphere is M13 in Hercules. This is a fuzzy blob in small telescopes and binoculars but with a moderate telescope of 180 mm aperture or more, together with a medium to high magnification individual stars can be seen.
A collection of hundreds of thousands of old stars held together by gravity. Globular clusters are usually spherically shaped and are often found in the halos of galaxies. Each star belonging to a cluster revolves around the cluster's common center of mass.
A globular cluster is a spherical collection of stars that orbits a galactic core as a satellite. Globular clusters are very tightly bound by gravity, which gives them their spherical shapes and relatively high stellar densities toward their centers. Globular clusters, which are found in the halo of a galaxy, contain considerably more stars and are much older than the less dense galactic, or open clusters, which are found in the disk.