As astronomers add to their known collections of distant planets – called exoplanets – they are expanding their understanding of how Earth’s rocky relatives appear around other stars. Their surveys often come across strange spheres, such as a newly discovered planet covered in molten magma with a “year” that lasts only half a day.
The discovery, called TOI-1075 b, was captured in observations from NASA’s transiting Exoplanet Survey satellite (he-goat) Space ship. The data are from these four years–The legacy mission revealed that TOI-1075 b’s superheated surface is about 1,922 degrees Fahrenheit (1,050 degrees Celsius). These extreme conditions are caused by the planet’s proximity to its parent star, a small, orange-red star about 200 light-years away. a land. But in addition to the planet’s hot climate and extremely short orbit — which takes just 14.5 hours — it’s great for another big reason: TOI-1075 b is one of the largest exoplanet Class.
“New data shows that TOI-1075 b is one of the most massive super-Earths discovered to date,” NASA officials wrote on November 8. Advertising (Opens in a new tab) from discovery.
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Researchers often categorize exoplanets with descriptions that compare these distant worlds to planets closer to home. Gas giant planets orbiting close to their parent stars are called “hot Jupiters,” for example.
Super-Earths are of interest to astronomers because they are thought to be common in Milky Wa, although none are found in Solar System.
However, if TOI-1075 b were closer to Earth, and humans could visit, they would notice that their weight on the surface of that planet would triple because TOI-1075 b is 10 times more massive than Earth.
The researchers found this world through the TESS transit method. To detect distant celestial bodies like TOI-1075 b, the spacecraft scans the night sky for signs of brightness change. If the star’s light dims periodically, this could indicate the presence of an exoplanet because every time the world orbits the star and passes in front of it with respect to Earth, it blocks a little bit of the starlight.
The technology allowed the mission to observe its 5,000th candidate exoplanet, a special milestone celebrated by TESS. earlier this year.
Every discovery has its value. NASA says TOI-1075 b, in particular, will help scientists fine-tune models of planet formation. “This, in turn, will help them predict what types of atmospheres super-Earths and other planet types have, or whether they have atmospheres at all.”