description GJ 674 Overview
GJ 674 is a red dwarf star located roughly 14.8 light-years away from Earth in the southern constellation of Ara. It is an M-type main-sequence star with a relatively cool surface temperature and a substantial magnetic field. In 2007, astronomers utilizing the High Accuracy Radial Velocity Planet Searcher (HARPS) spectrograph confirmed the presence of an exoplanet, designated GJ 674 b, orbiting the star. This Neptune-mass planet has a highly eccentric orbit and completes a full revolution around its host star in just under five days.
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Where is GJ 674 located?
GJ 674 is a red dwarf about 14.8 light-years from Earth in the southern constellation Ara. Its cool M-type classification makes it much dimmer and cooler than the Sun.
Does GJ 674 have a known planet?
Yes, GJ 674 has a confirmed planet called GJ 674 b. NASA's Exoplanet Archive lists it as a radial-velocity discovery from 2007.
How long does GJ 674 b take to orbit its star?
GJ 674 b completes an orbit in about 4.69 Earth days. The planet was detected through the small motion its gravity induces in the host star.
How was GJ 674 b discovered?
Astronomers used radial-velocity measurements from the HARPS planet-search program to detect it in 2007. The measured signal corresponds to a minimum mass of roughly 11 Earth masses.
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