multiple star


Also found in: Dictionary, Thesaurus, Wikipedia.

multiple star

A group of two or more stars, such as Epsilon Lyrae, that are held together by their mutual gravitational attraction. Orbital motions within multiple systems are complex. For instance, systems containing two or more close binaries in orbit about each other appear to be quite common. See also binary star.

Multiple Star

 

a system of three to seven stars in close proximity in space, revolving about a common center of mass under the action of gravitational forces. Systems of eight or more stars are generally the nuclei of star clusters. Multiple stars similar to the trapezium of Orion are systems whose components are more or less equidistant from one another. Such multiple stars may be unstable. In some cases, stars located significantly farther from or closer to the system and only projected on it in the sky are ascribed to the multiple system. The components of multiple stars can themselves be close (spectral, eclipsing, or other type) binary stars. In this case, there may prove to be more than seven stars in the system.

multiple star

[′məl·tə·pəl ′stär]
(astronomy)
A system of three or more stars which appear to the naked eye as a single star.
References in periodicals archive ?
Many binary and multiple star systems look to us like single points of light in the sky.
j] is a directed multiple star with center [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII].
This multiple star system must have been included in the NGC because of its appearance at low power this group is nebulous.
For its possessor, this honor is a carte blanche that will enable him to work in restaurants whose multiple star ratings could outshine a constellation.
from 9 pies upwards were run off from De La Rue's plates on multiple star watermark paper.
Sirius is a multiple star system, with at least three components orbiting their common center of gravity.
Master Controller (MCON) collects, processes and manages raw RFID data from multiple STAR systems supporting the EPCglobal Standard Application Layer Events (ALE) interface to seamlessly integrate with the industry's leading ERP systems, and can now run virtually with VMware for datacenter or RFID applications requiring a "cloud-hosted" solution managing the supply chain from source to destination.
This result strengthens the connection between multiple star systems and massive planets," said Roberts.
Astrophysicist Thomas Tauris from the Max Planck Institute for Radio Astronomy and the Argelander Institute for Astronomy in Bonn jointly with Ed van den Heuvel through theoretical calculations and stability analysis on the base of stellar evolution, demonstrated a plausible theoretical model which brings new insight to knowledge of stellar interactions in multiple star systems.
The unusual open cluster NGC 2017, which would be better referred to as an asterism, or a multiple star group, is situated just 1.
At the center of the nebula is the multiple star theta Orionis, more commonly known as the Trapezium--a real gem, buried in nebulosity.
Our final stop has lots to offer--it's the optical multiple star anchored on bright Kappa (k) Draconis.

Full browser ?