GJ 1214 b (sometimes Gliese 1214 b, [6] also named Enaiposha since 2023 [2]) is an exoplanet that orbits the star GJ 1214, discovered in December 2009. Its parent star is 48 light-years (15 pc) from the Sun, in the constellation Ophiuchus.

Mar 28, 2025 · GJ 1214 b is a Neptune-like exoplanet that orbits a M-type star. Its mass is 8.41 Earths, it takes 1.6 days to complete one orbit of its star, and is 0.01505 AU from its star. Its discovery was announced in 2009.

Dec 16, 2009 · Discovered by the MEarth project and investigated further by the HARPS spectrograph on ESO’s 3.6-metre telescope at La Silla, GJ1214b is the second super-Earth exoplanet for which astronomers have determined the …

May 10, 2023 · NASA’s James Webb Space Telescope has observed a distant planet outside our solar system – and unlike anything in it – to reveal what is likely a highly reflective world with a steamy atmosphere. It’s the closest look yet at the mysterious world, a “mini-Neptune” that was largely impenetrable to previous observations.

Feb 21, 2012 · GJ1214b, shown in this artist's view, is a super-Earth orbiting a red dwarf star 40light-years from Earth. New observations from NASA's Hubble Space Telescopeshow that it is a waterworld enshrouded by a thick, steamy atmosphere.

May 10, 2023 · Brand new intel on mysterious planet GJ 1214 b has been gleaned thanks to NASA’s James Webb Space Telescope. Planet GJ 1214 b was first observed by the Hubble Space Telescope but was blocked by a thick blanket of cloud and so until now has remained a …

Feb 21, 2012 · GJ1214b, shown in this artist’s view, is a super-Earth orbiting a red dwarf star 40 light-years from Earth. New observations from the NASA/ESA Hubble Space Telescope show that it...

Discovered by the MEarth Project and investigated further by the HARPS spectrograph on ESO ’s 3.6-metre telescope at La Silla, GJ 1214 b was the second super-Earth exoplanet for which astronomers determined the mass and radius, giving vital clues about its structure. It was also the first super-Earth around which an atmosphere was found.

May 10, 2023 · Here we report a spectroscopic thermal phase curve of GJ 1214b obtained with the James Webb Space Telescope (JWST) in the mid-infrared. The dayside and nightside spectra (average brightness...

Jan 1, 2014 · Here we report a measurement of the transmission spectrum of GJ 1214b at near-infrared wavelengths that definitively resolves this ambiguity. The data, obtained with the Hubble Space Telescope,...