Discovering the 'twin brothers' of the Sun, the prospect of the second Earth is no longer far away?

An international group of scientists and astronomers discovered that the "copy" is nearly identical to the Sun, promising to help narrow the search for a planet that can live on it.

It is estimated that up to 85% of stars can be a binary pair (a trio or even a quartet) when stars are formed in the - are pillars including gas and dust.

HD186302 may be the Sun's "twin" that scientists have been searching for so long.(Artwork: JPL-Caltech).

With this in mind, the use of advanced techniques including the latest astronomical data from ESA's GAIA space observatory, Instituto de Astrofísica e Scientists by Espaço (IA) in Bo Dao Nha believes that they found the twin brothers of the Sun about 184 light years away, known as science HD186302 .

'Because there is not much information about the Sun past, studying these stars can help us understand where in the galaxy and under what conditions the Sun is formed , ' said astronomer Vardan Adibekyan. explain.

Like the Sun, HD186302 is a star of the G class main sequence . It is slightly larger than the true Sun, with the same surface temperature and brightness. The star is also about 4.5 billion years old and contains similar chemical components.

'If you're lucky, this twin brother candidate has a planet, and the planet's surface is livable, and not "polluted" due to the seeds from Earth, then we have the right to dream about a second Earth orbiting the 2nd Sun. " Adibekyan astronomer added.

Previously, in 2014, scientists also discovered another candidate for the second Sun, a F-class star named HD162826. F class stars are usually blue or bright yellow, burning hotter than the Sun and have an average mass of 1.7 times the Sun.

Currently IA scientists plan to scan around newly discovered potential stars to find the planet-like signs of the Earth.