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Three elder sisters of the Sun with planets 5nvklj





Three elder sisters of the Sun with planets 9tpt39

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Three elder sisters of the Sun with planets

Dragon
Dragon
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Three elder sisters of the Sun with planets Empty Three elder sisters of the Sun with planets

Post by Dragon Sat Mar 06, 2021 3:45 am

An international team led by Prof. Dr. habil. Andrzej Niedzielski, an astronomer from the Nicolaus Copernicus University in Torun (Poland), has discovered yet another three extrasolar planets.

These planets revolve around the stars that can be called elder sisters of our Sun.

"These stars are red giants. They have masses exactly the same as our star, but they are a few billion years older, much bigger and cooler," explains Prof. Niedzielski.

"The planets that we have discovered are gas giants—without surfaces, similar to our Jupiter. They orbit far too close to their stars for conditions favorable for the origin of life to occur on them or in their vicinity."

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Three elder sisters of the Sun with planets 334pu7m
Dragon
Dragon
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Three elder sisters of the Sun with planets Empty Re: Three elder sisters of the Sun with planets

Post by Dragon Sat Mar 06, 2021 3:46 am



Stars such as our Sun burn hydrogen in their cores for most of their lives.

Once they run out of this fuel, they puff up into red giants, becoming hundreds of times larger and engulfing nearby planets.

As shown in this animation, in the case of the Solar System this will include Mercury, Venus, and even Earth, which will all be consumed by the red-giant Sun in about 5 billion years.


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Three elder sisters of the Sun with planets 334pu7m

    Current date/time is Sat Jul 31, 2021 12:06 am