What Orbits Stars

Astronomers have found many types of objects in orbit around stars. These range from other full-sized stars like our sun (binary star systems) to Jupiter sized planets (never directly imaged but inferred from radial-velocity spectroscopy). The relative sizes of these various types of bodies are shown above for comparison. Even though a brown dwarf can be similar in diameter to a Jupiter sized planet, brown dwarfs are 13-75 times more massive and they can appear on the order of 100-1,000,000 times brighter than a Jupiter sized planet at infrared wavelengths where they are studied with telescopes.

Credit:

Gemini Observatory/NSF/AURA/J. Lomberg

About the Image

Id:gemini0205d
Type:Artwork
Release date:May 21, 2002, 8 p.m.
Related releases:gemini0704, gemini0205
Size:720 x 761 px

About the Object

Category:Stars

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