stars library

Learn about Stars and get information on topics related to Stars.

Featured Article: Fixed star

Fixed star is an expression often used in referring to the stars, because their places in the sky relative to one another do not seem to change. See more »

Algol

Algol, AL gol, also called Beta Persei, is the second brightest star in the constellation Perseus.

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Alpha Centauri

Alpha Centauri, AL fuh sehn TAWR eye, is a multiple star system in the constellation Centaurus.

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Antares

Antares, also called Alpha Scorpii, is the brightest star in the constellation Scorpius.

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Arcturus

Arcturus, ahrk TUR uhs, also called Alpha Bootis, ranks as the fifth brightest star in the sky.

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Betelgeuse

Betelgeuse, BEE tuhl jooz, also called Alpha Orionis, is one of the brightest stars in the constellation of Orion.

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Binary star

Binary, BY nuhr ee, star or double star, is a pair of stars that are close together and cannot escape from each other.

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Capella

Capella, kuh PEHL uh, also known as Alpha Aurigae, ranks as the seventh brightest star in the sky.

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Dark matter

Dark matter is the invisible substance that makes up most of the matter in the universe.

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Fixed star

Fixed star is an expression often used in referring to the stars, because their places in the sky relative to one another do not seem to change.

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Maffei galaxies

Maffei, mah FAY ee, galaxies, often called Maffei 1 and Maffei 2, are two large star systems.

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Magellanic Clouds

Magellanic, maj uh LAN ihk, Clouds are two galaxies visible in the Southern Hemisphere as small, hazy patches of light.

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Milky Way

Milky Way is the galaxy that contains the sun, Earth, and other objects in our solar system.

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Mira

Mira, MY ruh, a giant red star, was one of the first stars of variable brightness to be discovered.

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Nebula

Nebula, NEHB yuh luh, is a cloud of dust particles and gases in space.

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Neutron star

Neutron star is the smallest and densest type of star known.

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North Star

North Star is a readily visible star that appears to be located almost directly above the North Pole.

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Nova

Nova is an explosion that causes a star to become from 10,000 to 100,000 times as bright as the sun.

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Quasar

Quasar, KWAY sahr or KWAY zahr, is an extremely luminous object at the center of some distant galaxies.

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Sirius

Sirius, SIHR ee uhs, also called the Dog Star, is the brightest star that can be seen from the earth at night.

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Spica

Spica, SPY kuh, is the brightest star in the constellation Virgo.

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