Wednesday , January 26 2022

NASA's new nuclear planet-hunting space TESS has found a distant third world



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NASA's nuclear planet-hunting space has already confirmed a space and a third world outside of our Solar System, in a three-month career in scientific operations. The recently discovered planet, or exoplanet, is quite close, with only 53 light years orbiting a small star. This means analyzing this world in a broader way, to find out where it is.

The discoverer of these worlds is NASA's TESS satellite, the size of a refrigerator launched in April around the Earth's orbit. The hunting area of ​​the NASA planet, Kepler, was a 100 million-million-lane seating and discovered a thousand huge exoplanets. Kepler was not fuelless in October, after Tessen's mission began with a full swing. But spacecraft seeks the sky in the same way: they seek small birds that are looking for bright stars, when the planet is facing and the parts of a star are locked for a moment.

TESS, however, has a different mission than its ancestors. Kepler sought a skull pat at all times to find out as many exoplanet as possible. These worlds were far away, though they were far more analyzed and analyzed. But TESS specifically exoplanets are looking for quite a bit near the Earth. These worlds are easier to see and investigate. We can study them with different telescopes, determine their mass or bury their atmospheres.

So, with each new world that it finds with TESS, we have the chance to learn more about it, along with other worlds we have not encountered. "The importance of this particular special system is closer to us," Diana Dragomir, Md's Astrophysics and Space Research Kavli Institute postdoc, and a detailed discovery of the team's head The Astrophysical Journal Letters, it tells The Virgin. "This means that we can simply analyze this system in detail, measuring the mass of the planet and measuring the star".


NASA / MIT / TESS

In September, NASA announced that TESS had found two planetary candidates about two weeks ago around two stars in around the world. But the newly confirmed planet is a little bit interesting. Like the first two discoveries, the third planet is orbiting a dwarf, a type of star that is farther and slower than our Sun. But they are much more far from orchestrating, 36 days a trip around the star.

Therefore, they are much cooler than two other planets, with an average temperature of 300 degrees Fahrenheit, "this is not hot," says Dragomir. "It's a little hotter than the water boiling point." Astronomers did not plan to cool these depths before temperatures. But because the world is very close, it is possible for scientists to look at the atmosphere and find out more about it in the future, probably expecting the launch of NASA's James Webb space telescope next 2021.

Dragomir and his team also figured the mass of this planet in the follow-up observations of the Magellan Telescope in Chile. The size of the land is about three times that it is 23 times larger than our planet. This makes "sub-Neptune", although it is much more compact than Neptune. There is no hope in world life, but it is probably the gas planet and not a rock.

However, it is possible other The orbit that is around the same planet around this planet, that is is there The size of the Earth itself. TESS has not yet confirmed. But there is a world that would be cooler, close to the 7.8-day orbit. And it could be TESS's first Earth planet. Thanks to his discovery, finally, we would consider the Earth's size to be a completely exoplanet.

Finds such things that make TESS discoveries for astronomers. "This is TESS designed: we can find small planets around the stars, so now we can get their mass and get access to their environment," says Dragomir.

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