Albireo. Seen at even slight magnification, Albireo unfolds from a bright single point into a beautiful double star of strikingly different colors. At 380 light years distant, the two bright stars of Albireo are comparatively far from each other and take over 7000 years to complete a single orbit. The brighter yellow star is itself a binary star system, but too close together to be resolved even with a telescope. Albireo, pictured above, is the second brightest star system toward the constellation of the Swan (Cygnus) and easily visible to the unaided eye.
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Based on Astronomy Picture Of the Day
Publications with keywords: star system
Publications with words: star system