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HD 225218 is a quadruple star system in the northern constellation of Andromeda. The primary component, HD 225218 A, is a giant star with a stellar classification of B9III, an apparent magnitude of 6.16, and is a candidate Lambda Boötis star. It has a fainter, magnitude 9.65 companion, HD 225218 B, at an angular separation of 5.2? along a position angle of 171°. The primary itself has been identified as a binary star system through interferometry, with the two components separated by 0.165?. The pair, HD 225218 Aa and Ab, orbit each other with a period of about 70 years and an eccentricity of 0.515. Component B is likewise a spectroscopic binary.
Video HD 225218
References
Maps HD 225218
External links
- Image HD 225218
Source of the article : Wikipedia