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Measuring Minute Variation in the Motion of Star Gl 876b Due to the Gravitational Pull of its Companion

Measuring Minute Variation in the Motion of Star Gl 876b Due to the Gravitational Pull of its Companion

Object Name
Object NameA name or catalog number that astronomers use to identify an astronomical object.
Gliese 876b
Release Date
December 3, 2002
Science Release
Hubble Makes Precise Measure of Extrasolar World’s True Mass
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Credit
NASA and A. Feild (STScI)

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Giant World Orbiting Red Dwarf Star Gliese 876

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This is an artist's concept of a gas giant planet orbiting the cool, red dwarf star Gliese 876, located 15 light-years away in the autumn constellation Aquarius. The planet was discovered in 1998. But new Hubble Space Telescope measurements of the star's wobble, caused by the...

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Last Updated

Aug 17, 2025

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Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov

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