An Earth-sized exoplanet orbiting a metal-poor star, provides key insights into planetary atmospheres and habitability.
About the size of Venus but slightly smaller than Earth , Gliese 12b’s discovery, helps in the search for Earth -like planets.With an average surface temperature of around 42 degrees Celsius , it attracts attention for its Earth -like characteristics.
“It’s exciting that this planet is the closest in size and temperature to Earth that we currently know,” he said.Compared to stars for example with lower metal content. Gliese 12 b, was discovered orbiting Gliese 12. As they explained in the study Gliese 12 b is the nearest transiting temperate, Earth-sized planet found to date. Gliese 12b has an orbital period of 12.8 days. Also, it is almost 40 light-years away from Earth.
“Gliese 12 b represents one of the best targets to study whether Earth-size planets orbiting cool stars can retain their atmospheres,” said Shishir Dholakia from Centre for Astrophysics at the University of Southern Queensland in Australia. “The Earth is habitable, but Venus is not due to its complete loss of water. Because Gliese 12 b is between Earth and Venus in temperature. Its atmosphere could teach us a lot about the habitability pathways planets take as they develop,”As stated since the 1990s, more than 5,500 planets orbiting around stars other than the Sun have been discovered. But according to the study, Gliese 12 b is among the most amenable temperate, terrestrial planets for atmospheric spectroscopy discovered to date.
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