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An international team of scientists and astronomers discovered a twin almost identical to our sun, a promising development that could help limit our search for another habitable world.
It is estimated that 85% of the stars may be binary pairs (or triplets or quadruplets), as stars tend to form in stellar nurseries, which are large clouds of gas and dust that can often form thousands of stars.
With this in mind, using advanced techniques, including the latest astronomical data from the ESA's GAIA space observatory, scientists at the Institute of Astronomy and Dreams' D & # 39; Spaces in Portugal think they found the binary brother of our sun at 184 light-years.
"Since there is not much information about the sun's past, studying these stars can help us understand where the galaxy is and under what conditions the sun will be." ;is formed", said astronomer Vardan Adibekyan of the IA.
Like our sun, HD186302 is a G-type main sequence star. It is slightly larger than its supposed sibling, with about the same surface temperature and brightness, and about 4.5 billion years old, with a similar chemical composition.
These details are crucial because the size of our sun, its age, its temperature, its brightness and its chemical composition offer the best conditions, and apparently only, to maintain life as we know it in the universe.
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"If we are lucky and our brother candidate has a planet and the planet is rocky, in the habitable zone, and finally if this planet was" contaminated "by the seeds of life, then we have what we could dream – a 2.0 Earth, orbiting a 2.0 Sun, "Adibekyan added.
A former long-lost solar candidate was an F-type star, HD162826, discovered in 2014. Type F stars are blue to white in color, burn more than our sun and have a mass greater than 1.7 times the average . They are also much brighter.
AI scientists now plan to search the surrounding cosmic countryside around the newly discovered potential twin, looking for signs of planets that might look like ours.
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