description GJ 1132 b Overview
GJ 1132 b is a transiting rocky exoplanet orbiting a nearby red dwarf approximately 40 light-years from Earth. Announced in 2015, it is somewhat larger than Earth and circles its star so closely that its surface is expected to be very hot. Atmospheric studies have produced differing interpretations, including proposals of a secondary atmosphere replenished by volcanic activity, but its present atmospheric state remains uncertain.
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How hot is GJ 1132 b expected to be?
GJ 1132 b orbits its red dwarf extremely closely, so its surface is expected to be very hot. It is not considered an Earth-temperature world despite being rocky and somewhat larger than Earth.
How far away is GJ 1132 b?
GJ 1132 b is approximately 40 light-years from Earth. Its nearby red-dwarf host made the planet an important target for atmospheric observations.
Is GJ 1132 b rocky?
GJ 1132 b is classified as a rocky exoplanet and is somewhat larger than Earth. Its close orbit and intense heating make its surface conditions very different from Earth's.
What is known about GJ 1132 b's atmosphere?
Atmospheric studies have produced different interpretations, so its present atmosphere remains an active research question. Observations have considered whether the planet retained, lost, or regenerated gases after formation.
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