SKY-MAP.
ORG
       
DE
RU
SV
KO
PT
EL
EN
IT
FR
HU
ES
ZH
JA
PL
HE
CA
NL
TR
SR
Follow @SkyMapLaunch
Deutsch
Русский
Svenska
Korean
Português
Ελληνικά
English
Italiano
Français
Magyar
Español
Chinese
日本語
Polski
עִבְרִית
Català
Nederlands
Turkish
Srpski
Home
Getting Started
To Survive in the Universe
Inhabited Sky
News
@
Sky
Astro Photo
The Collection
Forum
Blog
New!
FAQ
Press
Login
Edit Group
Language:
Nederlands
Group Name:
Group Description:
A binary star is a stellar system consisting of two stars orbiting around their center of mass. For each star, the other is its companion star. Recent research suggests that a large percentage of stars are part of systems with at least two stars. Binary star <a href="https://www.ibm.com/developerworks/community/wikis/home?lang=en#!/wiki/Waeaabbc6de9b_4db1_b4de_20369ea28d37" rel="tag">systems</a> are very important in astrophysics, because observing their mutual orbits allows their mass to be determined. The masses of many single stars can then be determined by extrapolations made from the observation of binaries. Thanks - <a href="http://corporateofficehqinfo.com/mcdonalds-corporate-office/" rel="tag">Mcdonalds</a>