multiple star - meaning and definition. What is multiple star
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What (who) is multiple star - definition

TYPE OF ASTRONOMICAL OBJECT, STARS WHICH ORBIT EACH OTHER
Trinary star; Triple star system; Multiple star; Stellar system; Multiple star system; Triplet Starz; Star systems; Ternary star; Trinary star system; Ternary star system; Triple star; Stellar systems; Hierarchical triple star system; Hierarchical triple star; Hierarchical trinary star; Hierarchical trinary star system; Hierarchical ternary star; Hierarchical ternary star system; Optical triple star; Physical triple star; Multiple stellar system; Physical multiple star; Optical multiple star; Quadruple star system; Quadruple star; Multiple stars; Multiple star systems; Single star system; Single-star system; Singlestar system; Single star systems; Single-star systems; Singlestar systems; Single stellar system; Trinary star systems; Star System; Quaternary star; Quintenary star; Sextenary star; Septenary star; Washington Multiplicity Catalog; Multiple-star systems; Multiple-star system
  • [[HD 98800]] is a quadruple star system located in the [[TW Hydrae]] association.
  • Orbits of the HR 6819 hierarchical triple star system: an inner binary with one star (orbit in blue) and a black hole (orbit in red), encircled by another star in a wider orbit (also in blue).
  • simplex, quintuple system, hierarchy 4.}}
  • Sirius A (center), with its white dwarf companion, Sirius B (lower left) taken by the [[Hubble Space Telescope]].
  • access-date=26 October 2015}}</ref>
  • Subsystem notation in Tokovinin's Multiple Star Catalogue

multiple star         
¦ noun a group of stars very close together as seen from the earth, especially one whose members are in fact close together and rotate around a common centre.
Multiple abnormalities         
CONGENITAL ABNORMALITIES THAT AFFECT MORE THAN ONE ORGAN OR BODY STRUCTURE
Multiple congenital malformations; Multiple congenital anomalies
When a patient has multiple abnormalities (multiple anomaly, multiple deformity), they have a congenital abnormality that can not be primarily identified with a single system of the body or single disease process. Most medical conditions can have systemic sequelae, but multiple abnormalities occur when the effects on multiple systems is immediately obvious.
multiple unit         
  • A double decker [[Sydney Trains B set]]
  • River Line]]
  • Perth]] and the mining town of [[Kalgoorlie]] in [[Australia]].
  • Elektrichka on [[Yaroslavskiy Rail Terminal]], Moscow
  • RABe 523]] is the most common multiple units on Switzerland, used by almost every S-Bahn.
  • A [[N700 Series Shinkansen]] set in June 2008
  • South Side Elevated Railroad car #1—one of the cars that Frank Sprague converted to MU operation in Chicago
  • East Croydon}}
  • Simon's Town station]], [[Cape Town]]
TYPE OF TRAIN CONSISTING OF SELF-PROPELLED CARRIAGES CAPABLE OF COUPLING WITH OTHERS OF THE SAME OR SIMILAR TYPE
Multiple units; Multiple-unit; Self-powered; Motorized unit; Self-powered car; Multi-unit; Electric mutliple unit; Multiple Units; Multiple-unit car; Multiple Unit; Freight multiple unit; Multiple-unit operation; Multiple unit train; Multiple-Unit
¦ noun a passenger train of two or more carriages powered by integral motors which drive a number of axles.

Wikipedia

Star system

A star system or stellar system is a small number of stars that orbit each other, bound by gravitational attraction. A large group of stars bound by gravitation is generally called a star cluster or galaxy, although, broadly speaking, they are also star systems. Star systems are not to be confused with planetary systems, which include planets and similar bodies (such as comets).

A star system of two stars is known as a binary star, binary star system or physical double star. If there are no tidal effects, no perturbation from other forces, and no transfer of mass from one star to the other, such a system is stable, and both stars will trace out an elliptical orbit around the barycenter of the system indefinitely. (See Two-body problem). Examples of binary systems are Sirius, Procyon and Cygnus X-1, the last of which probably consists of a star and a black hole.

Examples of use of multiple star
1. The fact that a planet can even exist in a multiple–star system is amazing in itself, according to Konacki.
2. Konacki found a new way to identify planets by measuring velocities of all bodies in a binary or multiple star system.
3. This method is less effective for binary and multiple star systems, and existing theories said planets were unlikely to form in this kind of environment.