The exoplanet Preston is completely an industry, but is still undergoing some changes, it was recently discovered in the orbit of a young star in a binary system, and the find may give some idea of how the planets formed in our own solar energy system.
Scientists at Dartmouth College in New Hampshire monitor the planet using the NASA NASA exoplanet transit satellite (TESS), which launched in April on a mission to search for alien planets orbiting the brightest stars at night sky. The planet was discovered in November 2018 by a NASA satellite and later confirmed by a group of scientists in Dartmouth in March.
The exoplanet, called DS Tuc Ab, was discovered in a two-star system (has two suns), but only orbits one of its stellar parents. That makes one orbit every eight Earth days, researchers said. They estimated the star system to be about 45 million years old. For comparison, our solar system is about 4.6 billion years old.
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Due to its young age, the exoplanet is still undergoing some rapid changes, such as atmospheric gas loss the radiation its star emits, according to a statement from Dartmouth College.
"One of the common goals of astronomy is to understand the overall picture of how we got here, how solar systems and galaxies form and why," Elizabeth Newton, associate professor of physics and astronomy at Dartmouth and co-author of the study, says in the statement. "By finding solar systems that are different from our own, especially young ones, we can hope to learn why Earth and our own solar system have evolved in the ways they did."
By observing the evaporation of exoplanets (1
Thousands of exoplanets have been discovered over the last two decades, but only a handful of these alien planets have orbited a young star, according to a statement. Scientists are always looking to observe the young worlds as they evolve to gain some insight into how planets form .
This particular planet is about six times the size of the Earth in diameter. Because of this size of the world, which is between that of Neptune and Saturn, scientists believe that it has a similar composition to that of the larger planets in our solar system.
DS Tuc Ab has two suns and orbits around a binary star system in a short span of eight days. This binary is one of the brightest young star systems ever seen, which makes monitoring the planet much easier, Newton said.
"The star's brightness allows us to study the planet in detail, because the more photons you have, the better statistics you have," she said. The planet was discovered using the transit method, in which scientists look for small changes in the brightness of the star that occur when the planet crosses the star face and therefore blocks some of the sun's light.
In future studies, researchers hope to measure the mass of this exoplanet and determine what type of molecules are present in its atmosphere, the study said.
This new study was published July 23 in the Astrophysical Journal Letters .