What is Kepler-22b?
Q: What is Kepler-22b?
A: Kepler-22b is an extrasolar planet that orbits a G-type star called Kepler-22.
Q: Where is it located?
A: It is located in the constellation Cygnus, about 600 light years away from Earth.
Q: How was it found?
A: It was found by NASA's Kepler Space Telescope.
Q: Is it the only planet orbiting the star?
A: The text does not mention if it is the only planet orbiting the star.
Q: What is significant about Kepler-22b?
A: Kepler-22b is notable for being the first known planet to orbit within the habitable zone of a Sun-like star.
Q: When were Kepler-22b's first and third transits observed?
A: Kepler-22b's first transit was observed on Kepler's third day of scientific operations in mid-2009, and its third transit was detected in late 2010.
Q: How was Kepler-22b's existence confirmed?
A: The Spitzer Space Telescope provided additional data that confirmed Kepler-22b's transits, and the confirmation of its existence was announced on December 5, 2011.
