Do you want to learn more about whats above the clouds?
Main Sequence Star
What's a Main Sequence Star? Well a main sequence star is any star lying on a diagonal band that extends from hot stars of high luminosity to cool stars of low luminosity; any stars in the Hertzsprung-Russell diagram from the upper left to the lower right of the diagram. Did you know about 90 percent of the stars in the universe, including the sun, are main sequence stars? These stars can range from about a tenth of the mass of the sun to up to 200 times as massive.
Red Super Giant
What is a spiral galaxy? Well a spiral galaxy is a galaxy in which the stars and gas clouds are concentrated mainly in one or more spiral arms.
An elliptical galaxy is a type of galaxy having an approximately ellipsoidal shape and a smooth, nearly featureless brightness profile.
A galaxy that does not have the clearly defined shape and structure of typical elliptical, lenticular, or spiral galaxies. Also irregular galaxies typically contain large amounts of gas and dust, and their stars are often young.
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What is a neutron star? A neutron star is a celestial object of very small radius (typically 18 miles/30 km) and very high density, composed predominantly of closely packed neutrons. Neutron stars are thought to form by the gravitational collapse of the remnant of a massive star after a supernova explosion, provided that the star is insufficiently massive to produce a black hole.
What is a black hole? A black hole is a region of space having a gravitational field so intense that no matter or radiation can escape. Also light can't even escape a black hole.
What is a quasar? Well a quasar is a massive and extremely remote celestial object, emitting exceptionally large amounts of energy, and typically having a starlike image in a telescope.
What's a globular cluster? Globular cluster, is a large group of old stars that are closely packed in a symmetrical, somewhat spherical form. Globular clusters, so called because of their roughly spherical appearance, are the largest and most massive star clusters.
What's a open cluster? A open cluster is a relatively loose grouping of stars. Also any group of young stars held together by mutual gravitation. Another thing is they aren't a lot of stars in an open cluster.
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