Two or more stars bound together and catalogued as a single system, from binary and eclipsing binary pairs through triple, quadruple and sextuple systems to optical doubles. Belongs here: any entry whose defining identity is the system of stars together, not one component star. Does not belong here: a single star described on its own, grouped under Stars, or a cluster of many unrelated stars sharing a common origin, grouped under Star Clusters.
Facts
Comparison
Field Origin Era All Multiple Star Systems
Filter Results16 entries
Sources
1. Wikipedia: Binary star
Wikimedia FoundationBinary star, Discovery section, 1803 Herschel sentenceQuote, Binary star, Discovery section, 1803 Herschel sentence
By 1803, he had observed changes in the relative positions in a number of double stars over the course of 25 years, and concluded that, instead of showing parallax changes, they seemed to be orbiting each other in binary systems.
Reader Challenges (0)
No disputes yet. Spotted an error or a better source? Open the first one.
Sign in to dispute this or suggest a correction.