What does binary star mean?
Definitions for binary star
bi·na·ry star
This dictionary definitions page includes all the possible meanings, example usage and translations of the word binary star.
Princeton's WordNet
binary star, binary, double starnoun
a system of two stars that revolve around each other under their mutual gravitation
Wiktionary
binary starnoun
A stellar system that has two stars orbiting around each other; double star.
Wikipedia
Binary star
A binary star is a system of two stars that are gravitationally bound to and in orbit around each other. Binary stars in the night sky that are seen as a single object to the naked eye are often resolved using a telescope as separate stars, in which case they are called visual binaries. Many visual binaries have long orbital periods of several centuries or millennia and therefore have orbits which are uncertain or poorly known. They may also be detected by indirect techniques, such as spectroscopy (spectroscopic binaries) or astrometry (astrometric binaries). If a binary star happens to orbit in a plane along our line of sight, its components will eclipse and transit each other; these pairs are called eclipsing binaries, or, together with other binaries that change brightness as they orbit, photometric binaries. If components in binary star systems are close enough they can gravitationally distort their mutual outer stellar atmospheres. In some cases, these close binary systems can exchange mass, which may bring their evolution to stages that single stars cannot attain. Examples of binaries are Sirius, and Cygnus X-1 (Cygnus X-1 being a well-known black hole). Binary stars are also common as the nuclei of many planetary nebulae, and are the progenitors of both novae and type Ia supernovae.
ChatGPT
binary star
A binary star is a star system consisting of two stars orbiting around their common center of mass. The brighter star is officially classified as the primary star, while the other is the secondary star. They are important in astrophysics because calculations of their orbits allow the masses of their component stars to be directly determined.
Wikidata
Binary star
A binary star is a star system consisting of two stars orbiting around their common center of mass. The brighter star is called the primary and the other is its companion star, comes, or secondary. Research between the early 19th century and today suggests that many stars are part of either binary star systems or star systems with more than two stars, called multiple star systems. The term double star may be used synonymously with binary star, but more generally, a double star may be either a binary star or an optical double star which consists of two stars with no physical connection but which appear close together in the sky as seen from the Earth. A double star may be determined to be optical if its components have sufficiently different proper motions or radial velocities, or if parallax measurements reveal its two components to be at sufficiently different distances from the Earth. Most known double stars have not yet been determined to be either bound binary star systems or optical doubles. Binary star systems are very important in astrophysics because calculations of their orbits allow the masses of their component stars to be directly determined, which in turn allows other stellar parameters, such as radius and density, to be indirectly estimated. This also determines an empirical mass-luminosity relationship from which the masses of single stars can be estimated.
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Matched Categories
Numerology
Chaldean Numerology
The numerical value of binary star in Chaldean Numerology is: 4
Pythagorean Numerology
The numerical value of binary star in Pythagorean Numerology is: 1
Translations for binary star
From our Multilingual Translation Dictionary
- estrella binàriaCatalan, Valencian
- dvojhvězdaCzech
- dobbeltstjerneDanish
- DoppelsternGerman
- duuma steloEsperanto
- estrella binariaSpanish
- kaksoistähtiFinnish
- étoile binaireFrench
- déréaltaIrish
- बाइनरी स्टारHindi
- kettőscsillagHungarian
- duopla steloIdo
- tvístirniIcelandic
- stella binariaItalian
- 連星Japanese
- dubbelsterDutch
- estrela bináriaPortuguese
- двойная звезда, бинарная звёздная система, бинарная звездаRussian
- двојна звезда, бинарна звездаSerbo-Croatian
- dubbelstjärnaSwedish
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"binary star." Definitions.net. STANDS4 LLC, 2024. Web. 26 Apr. 2024. <https://www.definitions.net/definition/binary+star>.
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