GJ 1214 b

GJ 1214 b (Gliese 1214 b) is an extra-solar planet orbiting red dwarf GJ 1214 (Gliese 1214), about 15 parsecs from Earth. It is a transiting planet discovered by the MEarth Project in 2009, a super-Earth, larger than Earth but smaller than gas giants. Transmission spectroscopy of its atmosphere during transits reveals no absorption lines that would suggest a water vapor atmosphere or clouds. Characteristics:

• Host star: Gliese 1214 (GJ 1214).
• Discovery: by the transit method in 2009.
• 17h15m18.93399s - right ascension.
• +04deg57m50.0666s - declination.
• 14.64 pc - distance.
• 0.01490 AU - orbital radius.
• 1.58 days - orbital period.
• 2.7 - radius in Earth radii.
• 8.2 - Earth masses.
• 393-555 K - equilibrium temperature determined to be within this range (which is above 100° C).