A ‘habitable’ earth-like planet, which is orbiting around a sun-like star 600 light years away, has been discovered in our galaxy for the first time, researchers say. A team of researchers from NASA’s Kepler Mission has discovered what could be a large, rocky planet with a surface temperature of
about 72 degrees Fahrenheit, comparable to a comfortable spring day on Earth.
The discovery team, led by William Borucki of the NASA Ames Research Center, used photometric data from the NASA Kepler space telescope, which monitors the brightness of 155,000 stars.
Earth-size planets whose orbital planes are aligned such that they periodically pass in front of their stars result in tiny dimmings of their host star’s light dimmings that can only be measured by a highly specialized space telescope like Kepler.
The host star lies about 600 light-years away from us toward the constellations of Lyra and Cygnus.
The star, a G5 star, has a mass and a radius only slightly smaller than that of our Sun, a G2 star. As a result, the host star is about 25 percent less luminous than the Sun.
The planet orbits the G5 star with an orbital period of 290 days, compared to 365 days for the Earth, at a distance about 15 percent closer to its star than the Earth from the Sun. This results in the planet’s balmy temperature. It orbits in the middle of the star’s habitable zone, where liquid water is expected to be able to exist on the surface of the planet.
Liquid water is necessary for life as we know it, and this new planet might well be not only habitable, perhaps even inhabited.
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about 72 degrees Fahrenheit, comparable to a comfortable spring day on Earth.
The discovery team, led by William Borucki of the NASA Ames Research Center, used photometric data from the NASA Kepler space telescope, which monitors the brightness of 155,000 stars.
Earth-size planets whose orbital planes are aligned such that they periodically pass in front of their stars result in tiny dimmings of their host star’s light dimmings that can only be measured by a highly specialized space telescope like Kepler.
The host star lies about 600 light-years away from us toward the constellations of Lyra and Cygnus.
The star, a G5 star, has a mass and a radius only slightly smaller than that of our Sun, a G2 star. As a result, the host star is about 25 percent less luminous than the Sun.
The planet orbits the G5 star with an orbital period of 290 days, compared to 365 days for the Earth, at a distance about 15 percent closer to its star than the Earth from the Sun. This results in the planet’s balmy temperature. It orbits in the middle of the star’s habitable zone, where liquid water is expected to be able to exist on the surface of the planet.
Liquid water is necessary for life as we know it, and this new planet might well be not only habitable, perhaps even inhabited.
Diamond stud earrings
Read more
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