At a distance of about 100 light-years it found the TESS space telescope of the American Space Agency (NASA) the exoplanet TOI 700e, which resembles the Earth and has 95% of its size. In other words, it is marginally smaller, while it is probably also rocky.
She the “second Earth” appears to be moving around its star (of a small relatively cool M-type red dwarf) at a distance suitable for the existence of water in liquid form and for the development of life. Astronomers had previously discovered three planets in the same system, TOI b, c and d. The latter also moves in the habitable zone and resembles Earth.
The researchers, led by astronomer Emily Gilbert of NASA’s Jet Propulsion Laboratory (JPL) in Southern California, made the announcement at a meeting of the American Astronomical Society in Seattle, and will be published in The Astrophysical Journal Letters.
“This is one of the few systems with many small and potentially habitable planets that we know of. This makes the TOI 700 system eminently suitable for further study. Planet e is about 10% smaller than planet d, so it turns out that additional observations with TESS allow us to find smaller and smaller worlds,” said Gilbert.
Where is TOI 700?
The star TOI 700 is located in the southern constellation of Dorado, and in 2020 the star similar to the Earth (and 20% bigger than her) exoplanet d. The innermost planet b, which is 90% the size of Earth, has a year of ten days (the time of one complete revolution around its parent star), c is 2.5 times larger than Earth and has a year 16 days, d has a year of 37 days, while e has 28 days.
TESS (Transiting Exoplanet Survey Satellite) was launched in April 2018 and is now NASA’s primary exoplanet hunter, having discovered 285 confirmed exoplanets and more than 6,000 candidates to date. TOI stands for TESS Object of Interest.
Observation of the TOI 700 system with TESS, as well as other ground-based and space-based telescopes, continues. The TOI 700 system is the second one of so much interest to astronomers after the nearest Trappist-1 system at a distance of 39.5 light-years from Earth, which has seven planets that have similarities to our own.
Source: News Beast
Bruce Belcher is a seasoned author with over 5 years of experience in world news. He writes for online news websites and provides in-depth analysis on the world stock market. Bruce is known for his insightful perspectives and commitment to keeping the public informed.
