What are Gliese 876 d, OGLE-2005-BLG-390Lb, MOA-2007-BLG-192Lb, COROT-Exo-7b, Gliese 581 d and Gliese 581 c?
OGLE-2005-BLG-390Lb The planet is notable for its large distance from its star for such a relatively small exoplanet - these planets are challenging to find with other detection methods. Prior to this, "small" exoplanets such as Gliese 876 d, which has an orbital period of less than 2 Earth-days, were detected very close to their stars. OGLE-2005-BLG-390Lb shows a combination of size and orbit that would not make it out of place in the Solar System. "The team has discovered the most Earthlike planet yet", said Michael Turner, assistant director for the mathematical and physical sciences directorate at the National Science
Gliese 581 Gliese 581 Gliese 581 () is a star of spectral type M3V (a red dwarf) at the center of the Gliese 581 planetary system, about 20 light years away from Earth in the Libra constellation. Its estimated mass is about a third of that of the Sun, and it is the 89th closest known star to the Sun. Gliese 581 is known at least from 1886, when it was included in Eduard Schönfeld's "Southern (SD)"—the fourth part of the "". The corresponding designation is BD -7 4003. The name "Gliese 581" refers to the catalog number from the 1957 survey