description OGLE-2005-BLG-390Lb Overview
OGLE-2005-BLG-390Lb is a cold super-Earth exoplanet discovered in 2005 through the gravitational microlensing technique. Located approximately 21,500 light-years from Earth, it was one of the smallest and most distant exoplanets discovered at the time of its announcement. The planet orbits a red dwarf star near the center of the Milky Way galaxy and has a mass estimated to be over five times that of Earth, with surface temperatures cold enough to freeze volatile gases.
help OGLE-2005-BLG-390Lb FAQ
How was OGLE-2005-BLG-390Lb discovered?
It was discovered in 2005 using a technique known as gravitational microlensing. This method relies on the gravitational field of a host star bending and magnifying the light of a background star, revealing the presence of the planet.
How far away is OGLE-2005-BLG-390Lb from Earth?
The exoplanet is located approximately 21,500 light-years away from Earth. This immense distance made it one of the most remote exoplanets ever detected at the time of its announcement.
What type of planet is OGLE-2005-BLG-390Lb?
It is classified as a cold super-Earth, meaning its mass is a few times that of our own planet. It orbits its host star at a distance that makes its surface temperatures extremely frigid, similar to Pluto.
What telescope was used to find OGLE-2005-BLG-390Lb?
The discovery involved the OGLE-III survey, which utilizes the 1.3-meter Warsaw University Telescope at the Las Campanas Observatory in Chile. Astronomers from the PLANET/RoboNet collaboration also provided crucial follow-up observations to confirm the planetary object.
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