Monday , May 23 2022

The craft air TESS to hunt the planet new NASA found a distant third world


Most new space craft NASA for planet hunting and confirmed already spied third world outside our Solar System – in only three months of vehicle science operations. This newly discovered planet, or exoplanet, is relatively close, orbitita small star only 53 light years. And that means that we studying this world b & # 39; more extensive way, to figure out & # 39; can & # 39; have its atmosphere.

The view & # 39; such is the world TESS NASA – satellite spacecraft about the size of & # 39; refrigerator launched into orbit around the Earth in & # 39; April. The vehicle is the successor to NASA spacecraft, Kepler, who placed nearly 100 million miles from Earth and found thousands of distant eżoplanet. Kepler outgoing fuel in October, just after the mission began to enter TESS well. But both aircraft air look alike: looking for tiny dips in the light of & # 39; distant star, every planet crosses in front and momentarily blocking part of the star.

TESS, however, has a different mission from its ancestor. Kepler sought one patch of sky at all times, to find possible & # 39; to be exoplanets. These worlds were often & # 39; very far, though, too distant to really study and analyze more. But TESS are specifically looking for exoplanets relatively close to Earth. These world will then be easier to see and study. We nanalizzawhom b & # 39; different telescopes, to determine their mass or x & # 39; may be lurking in their atmospheres.

So with each new world to find TESS, there is a chance to learn more about it, in ways that we can not with other worlds that we found before. "The important thing about this system is particularly unique is our close," Diana Dragomir, postdoc at the Institute & # 39; the Astaviżika and Research & # 39; Space of & # 39; MIT, and head of the team that made the discovery in depth the Astrophysical Journal Letters, recounts The tip. "What that means is that we simply studying this system in detail. We can measure the mass of the planet and judge things about the star. "


F & # 39; in September, NASA announced that planets TESS found two candidates – two world revolving around their host stars in just a few hours and days. But this newly confirmed planet is a bit more interesting. Just like the first two discoveries, this third planet is about orbitita dwarf, type & # 39; star is smaller and poorer than our sun. But it is much more orbit & # 39; away from the other two, and take 36 days to complete one trip around the star.

This makes it much colder planet from the other two, b & # 39; average temperature & # 39; about 300 degrees Fahrenheit, "not that hot," says Dragomir. "It's a little warmer than the boiling point of & # 39; water." Astronomers were able to study planets in & # 39; such cold temperatures deep before. But since the world is very close, it is possible that scientists can see inside its atmosphere and learn more about in the future, possibly with the Space Telescope next NASA James Webb is supposed to launch in 2021 .

Dragomir and her team were also able to figure out the mass & # 39; this planet by making observations & # 39; up with the Magellan telescope in Chile. Although it is about three times the size of Earth, is 23 times more massive than our planet. This makes it as "sub-Neptunus", although it is much more dense than that of Neptune. M & # 39; there is no hope that this world is habitable, though, because that & # 39; is probably a gas planet and not a rock.

However, it is possible that there other planet around the same stars that orbit around the planet – one that is about the same size as Earth. That one, also employed by TESS, has not yet been confirmed. But if there is, that is much warmer world, very close b'erbita lasting just 7.8 days. And also be the first planet found worldwide as TESS. Its discovery would mean that in the end we studying exoplanet to Earth as b & # 39; fullest.

Finds like these that make each new discovery by TESS so exciting to astronomers. "This is what it is designed to do TESS: find these small planets around nearby stars, then we can now get their masses and take access to their atmospheres," says Dragomir.

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