CoRoT-7b (2) by bem1RO on DeviantArt (original) (raw)

CoRoT-7b is a fascinating exoplanet discovered by the CoRoT (Convection, Rotation and Planetary Transits) space telescope. Here are some key details about CoRoT-7b:

• Classification and Size: CoRoT-7b is classified as a rocky exoplanet, similar to Earth. It is approximately 1.58 times the radius of Earth and about 4.8 times its mass, making it one of the first known "super-Earths"—a planet with a larger mass than Earth but smaller than Uranus or Neptune.
• Orbital Characteristics: The planet orbits its host star, CoRoT-7, very closely, with an orbital period of just about 20.4 hours. This close proximity results in extremely high surface temperatures, estimated to range from 1,800 to 2,600 K (2,780 to 4,220 °F) on the day side, potentially causing molten lava on its surface.
• Host Star: CoRoT-7b orbits a G-type main-sequence star, similar to our Sun but slightly smaller and cooler. The star is located approximately 489 light-years away in the constellation Monoceros.
• Surface Conditions: Due to its close orbit, CoRoT-7b is tidally locked, meaning one side always faces the star while the other side is in perpetual darkness. This results in extreme temperature variations between the day and night sides. The intense heat on the day side likely causes volcanic activity and a molten surface, while the night side could be much cooler.
• Discovery and Significance: Discovered in 2009, CoRoT-7b was one of the first rocky exoplanets to be identified, marking an important milestone in exoplanet research. Its discovery has helped scientists understand more about the diversity and nature of exoplanets, particularly those that are similar in composition to Earth.
• Atmosphere and Potential for Habitability: Given its extreme temperatures and close proximity to its star, CoRoT-7b is unlikely to host life as we know it. Its atmosphere, if it exists, would be tenuous and composed mainly of vaporized rock and metals from the planet's surface.

CoRoT-7b remains a subject of interest due to its unique characteristics and the insights it provides into the formation and nature of rocky exoplanets.