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Objects Encyclopedia Entry 1781719625

** The **Kepler-452b** is an exoplanet that orbits a G-type star (similar to the Sun) located approximately 1,400 light-years from Earth in the constellation Cygnus. This exoplanet is considered a potentially habitable world due to its size and distance from its star. ## Overview The **Kepler-452b** is a fascinating exoplanet that has garnered significant attention from astronomers and planetary scientists. This exoplanet was discovered in 2015 by the Kepler space telescope, a NASA mission designed to detect exoplanets using the transit method. The transit method involves measuring the decrease in brightness of a star as a planet passes in front of it. By analyzing the light curve of the star Kepler-452, scientists were able to detect a signal that indicated the presence of a planet. Kepler-452b is a type of exoplanet known as a super-Earth, meaning it is larger than our own Earth but smaller than the gas giants in our solar system. This exoplanet has a mass of approximately 5 times that of Earth and a radius of about 1.63 times the radius of our planet. Kepler-452b orbits its star at a distance of about 1.63 astronomical units (AU), which is slightly closer than Earth's distance from the Sun. ## History/Background The discovery of Kepler-452b was announced on July 23, 2015, by NASA. The exoplanet was one of the first to be discovered by the Kepler space telescope that was considered a potentially habitable world. Kepler-452b's star, Kepler-452, is a G-type star, similar to the Sun, and is located in the constellation Cygnus. The star is about 6 billion years old, which is about 1.5 billion years older than the Sun. ## Key Information Kepler-452b is considered a potentially habitable world due to its size and distance from its star. The exoplanet's mass and radius suggest that it may have a solid surface, which is a requirement for life as we know it. Additionally, Kepler-452b orbits its star at a distance that is similar to Earth's distance from the Sun, which means that it may receive a similar amount of energy from its star. The surface temperature of Kepler-452b is estimated to be around 10°C (50°F), which is similar to Earth's surface temperature. This suggests that the exoplanet may have liquid water on its surface, which is a key ingredient for life. However, it's essential to note that the surface temperature of Kepler-452b is still a topic of debate among scientists, and more research is needed to confirm this estimate. ## Significance The discovery of Kepler-452b has significant implications for the search for life beyond Earth. The exoplanet's size and distance from its star make it a prime candidate for hosting liquid water and potentially life. The discovery of Kepler-452b also highlights the importance of continued exploration of our galaxy and the search for exoplanets that may be capable of supporting life. INFOBOX: - Name: Kepler-452b - Type: Exoplanet - Date: Discovered in 2015 - Location: Constellation Cygnus, approximately 1,400 light-years from Earth - Known For: Potentially habitable exoplanet TAGS: **Exoplanet**, **Super-Earth**, **Habitable Exoplanet**, **Kepler Space Telescope**, **NASA**, **Astronomy**, **Astrophysics**, **Space Exploration**, **Planetary Science**