Cluster of Stars - A group of stars held together by their mutual gravitational attraction
CNO Cycle - The series of reactions by means of which massive stars fuse hydrogen into helium ...
A cluster of stars known as M7 sparkles like fireflies in this view from Kitt Peak National Observatory. The stars in the cluster are all members of the same family -- they were born about 220 million years ago from a single cloud of gas and dust.
A cluster of stars within a cloud of gas and dust.
Docking
When one spacecraft attatches itself to something else.
A cluster of stars a few million years old at the lower right illuminates the Tarantula Nebula in the Large Magellanic Cloud.
When a cluster of stars is formed at about the same time, the life span of these stars will depend on their individual masses. The most massive stars will leave the main sequence first, followed steadily in sequence by stars of ever lower masses.
There is one cluster of stars called NGC 5634 located in Virgo's right leg. Unfortunately, there are no nebulae, but the large number of galaxies makes up for it. There is a large cluster of galaxies to the east of her left arm.
A galaxy is a cluster of stars, dust, and gas which is held together by gravity. Galaxies are scattered throughout the Universe and they vary greatly in size. A galaxy may be alone or it may be in a large group of galaxies called a "supercluster".
The Hyades, a cluster of stars 152 light years away that makes the head of Taurus, the Bull, appears to surround the bright star Aldebaran (toward lower left), which makes the Bull's glaring eye.
The mass of a cluster of stars or galaxies in statistical equilibrium derived by using the virial theorem that the mean square velocity of all the stars or galaxies in a cluster is proportional to the mass of the cluster divided by its radius.
M52 is an open cluster of stars situated within the constellation of Cassiopeia. It can be seen against the backdrop of a Milky Way field.
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.
gram - (n.) ...
OPEN CLUSTER - Cluster of stars usually containing several 100 members packed into a region usually less than 20 light years in size. They are normally found near regions of star formation in the spiral arms of galaxies.
(a) A small, loose cluster of stars that typically contains several hundred members. The best examples are the Hyades and the Pleiades, both in the constellation Taurus.
It lies within a widely scattered cluster of stars making it an interesting region for binoculars.
Small telescopes may have a problem in resolving the 8th mag companion (an A2 main sequence star) of the B0.5 main sequence star epsilon Per.
galaxy a very large cluster of stars (tens of millions to trillions of stars) gravitationally bound together. General Relativity a theory invented by Albert Einstein to describe gravity.
The end result of all this star formation is the creation of a cluster of stars called an open cluster or galactic cluster. Examples of such clusters include the Hyades and the Pleiades clusters.
A glance at the Milky Way, with its sharply defined irregular boundaries, its clefts and diverging spur, is almost sufficient to assure us that it is a real cluster of stars, ...
The result is a cluster of stars called an open cluster or galactic cluster. Examples of such clusters include the Hyades and the Pleiades clusters. Studies of such clusters show that many more low mass stars are formed than high mass stars.
The cloud collapses and fragments, forming a cluster of stars. The hottest stars heat and ionize the surrounding gas, sending shock waves through the surrounding cloud, possibly triggering new rounds of star formation.
They show that in the formation of a cluster of stars, fetal objects are often interacting with each other, forming loose alliances, then being ejected from the group while formation is still in progress. Brown dwarfs sometimes form by themselves.
Stellar cluster or cluster of stars is a group of stars bounded by their mutual gravity. When compared with the multiple star systems, they consist of many more stars, from tens to millions.
Melotte 111 is is a large, open cluster of stars ranging between 5th magnitude (barely visible) to 10th magnitude, 100 times fainter.
A cluster of about 150 hot, young stars concentrated within a radius of about one light-year, making it the most compact cluster of stars in our Galaxy.
The Eagle Nebula is a young open cluster of stars in the constellation Serpens, discovered by Jean-Philippe de Cheseaux in 1745-46. Its name derives from its shape which is reminiscent of an eagle....
".
Our star may have been born into a cluster of stars, which means there would have been many stars close to the Sun back then.
The Sun and Earth are estimated to be 4.6 billion years old.
This assumes that initially there is a dense interstellar cloud which will eventually produce a cluster of stars. Dense regions in the cloud form and coalesce; as the small blobs have random spins the resulting stars will have a low rotation rates.
What is the typical evolution of a cluster of stars forming into a galaxy? My friend seems to think that we start with spirals then move to disks.
The Small Magellanic Cloud (SMC) is located 210,000 light years away towards the constellation Tucana, and the open cluster of stars that make up NGC 346 spans around 200 light years.
The scientists discovered the pulsar, named PSR J1748-2446ad, in a globular cluster of stars called Terzan 5, located some 28,000 light-years from Earth in the constellation Sagittarius.
Canes Venatici contains a globular cluster of stars, M3, and a beautiful spiral galaxy, M51, called the Whirlpool. M51 was the first galaxy in which spiral form was noticed, by the Irish astronomer Lord Rosse in 1845.
NGC 2323 (Messier 50) is an open cluster of stars resembling the shape of a heart. It is approximately 3,000 light-years distant.
Monoceros belongs to the Orion family of constellations, along with Orion, Canis Major, Canis Minor and Lepus.
The Pleiades (M45), also known as the "Seven Sisters" (and "Subaru" in Japan), is the brightest open cluster of stars in the sky. It is located in the constellation Taurus. Six of the stars in the Pleiades are visible without a telescope.
This is an open cluster of stars known as M29, or NGC 6913. This object is nearly bright enough to been seen with the naked eye from a dark sky location.
It was discovered in mid 19th century that the stars have no apparent motion relative to each other, and therefore is really a real cluster of stars that were born together.
Over a period of several million years, a cluster of stars will form out of an H II region, before radiation pressure from the hot young stars resulting causes the nebula to disperse.
In particular, by plotting a HR diagram for either a globular or open cluster of stars, astronomers can estimate the age of the cluster from where stars appear to turnoff the main sequence (see the entry on main sequence for how this works).
5 metres (98 in) Hooker telescope, and they enabled the distance of Great Andromeda Nebula to be determined. His measurement demonstrated conclusively that this feature was not a cluster of stars and gas within our Galaxy, ...
Look for the constellation just to the west of Leo. Within Cancer can be found M44, also known as the Beehive Cluster, or the Praesepe. This is an open cluster of stars, that under a dark sky looks like a small, fuzzy cloud.
Capella is a bright (magnitude 0.1) yellow star (G-type, like our Sun). A nice thing about Alnath is that it helps you keep to your imaginary line as it directs you towards Capella. Alnath is roughly halfway between Capella and the cluster of stars ...
Due to a lack of sufficient gravitational pull, however, Sol's surrounding cluster of stars dispersed over the past five billion years as they moved around the developing Milky Way galaxy, ...
has a an excellent section on supercomputing modelling of the formation of stars and brown dwarfs in a star cluster. It has large animation files and individual images that show the collapse of a 50 solar mass molecular cloud into a cluster of stars.
 See also: Cluster, Star, Earth, Light, Distance
|
