According to the researchers, it is possible that there is a third planet orbiting slightly away from the star called “Galez 887” Dwarf star A faint red half a block the sun Approximately.
Because of his proximity, he is the brightest red dwarf in the sky, in addition to being one of the closest stars to Sun Group.
A team of astronomers has been working on a project called “Red Dots”, which is trying to find Outer terrestrial planets Closer to our sun, the star’s movement across Astronomical Observatory Southern European in Chile every night for three months.
The science team has discovered the super planets orbiting the star 887 Glies via a technique called the “Harp Spectrum” of high-precision radial velocity.
The HARPS spectrum technology enables detection spiral stars Using another technique called “Doppler wobble” or radial velocity method.
And this wobbling occurs when the star moves back and forth in the form of small oscillations due to being pulled by the force of gravity by the planets revolving around it.
Astronomers called the two planets that were discovered around the Glies 887b and Glies 887c. The first planet completes one orbit around the star every 9.3 Earth days, while the second planet takes 21.8 Earth days to complete one orbit.
Scientists have also discovered a signal further that could correspond to a signal for another planet that takes 50 Earth days to complete its orbit around the star.
It is mentioned that these planets are called “super Earth” because their size is greater than Earth But it is smaller than other planets like Uranus AndNeptune, Located in a habitable astronomical orbit, the orbit in which terrestrial planets can support the presence of liquid water on their surface.
And since the Gliese 887 star is cooler than our sun, its habitable area is much closer in range to the star – meaning that the planets orbiting it sooner are also likely to be in this range.
However, the two supernovae are a little close to the star, which means they are extremely hot and cannot hold water in its liquid form.
The two planets receive energy from the star 2.5 to 8 times more than the Earth receives from the sun.
But the third potential planet, which could also be a super Earth, could orbit in the habitable star area.
Sandra Jeffers, lead author of the study and lecture at the Institute of Astrophysics at the University of Göttingen in Germany, said in an email to CNN: “Star Galise 887 is the best star located close to the sun because it is an unusually quiet star, it is It is not like dark stars and there are no active explosions like the ones we see on the sun. “
And if the star were as active as our sun, its stellar winds would erode and sweep the atmosphere of the planets revolving around it.
Researchers believe that, since the star is calm, the planets surrounding it can preserve the nature of their atmosphere. It may have a thicker atmosphere than Atmosphere للأرض.
“If someone is to live on a planet around a red dwarf, it is better to choose a quieter star like the 887 Glefs,” says Melvin Davies, astronomy professor at the Department of Astronomy and Theoretical Physics at Lund University in Sweden.
The brightness of the star is also very constant, which means that it may be easier to discover the potential atmosphere of these planets, and to become ideal targets for research in upcoming space missions through James Webb Space Telescope Of the agency NASA.
The telescope, which is expected to be launched next year, can penetrate the atmosphere of exoplanets and help characterize their configurations.
“By studying the atmospheres of these planets, scientists will be able to understand whether conditions are valid for life on these planets,” said Jeffers.
It is mentioned that the scientific team working on the red dots project had found other exoplanets close to our sun, such as those around a star. Proxima Santouri and Najm Barnard.
The study of these nearby outer planets helps to learn more about the formation and evolution of stars and planets, as well as the search for extraterrestrial life.
Jeffers and her future science team are trying to monitor superstar Glies 887 to determine if the third signal is for another planet orbiting the star.
“If other observations confirm the existence of the third planet in the habitable zone, the dwarf star Galez 887 will become one of the most closely studied planetary systems of the solar system,” Davis wrote.
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CNN News said that this is near Planetary system Interesting and close to the solar system can be studied further in the future.
According to the researchers, it is possible that there is a third planet orbiting slightly away from the star called “Galez 887” Dwarf star A faint red half a block the sun Approximately.
Because of his proximity, he is the brightest red dwarf in the sky, in addition to being one of the closest stars to Sun Group.
A team of astronomers has been working on a project called “Red Dots”, which is trying to find Outer terrestrial planets Closer to our sun, the star’s movement across Astronomical Observatory Southern European in Chile every night for three months.
The science team has discovered the super planets orbiting the star 887 Glies via a technique called the “Harp Spectrum” of high-precision radial velocity.
The HARPS spectrum technology enables detection spiral stars Using another technique called “Doppler wobble” or radial velocity method.
And this wobbling occurs when the star moves back and forth in the form of small oscillations due to being pulled by the force of gravity by the planets revolving around it.
Astronomers called the two planets that were discovered around the Glies 887b and Glies 887c. The first planet completes one orbit around the star every 9.3 Earth days, while the second planet takes 21.8 Earth days to complete one orbit.
Scientists have also discovered a signal further that could correspond to a signal for another planet that takes 50 Earth days to complete its orbit around the star.
It is mentioned that these planets are called “super Earth” because their size is greater than Earth But it is smaller than other planets like Uranus AndNeptune, Located in a habitable astronomical orbit, the orbit in which terrestrial planets can support the presence of liquid water on their surface.
And since the Gliese 887 star is cooler than our sun, its habitable area is much closer in range to the star – meaning that the planets orbiting it sooner are also likely to be in this range.
However, the two supernovae are a little close to the star, which means they are extremely hot and cannot hold water in its liquid form.
The two planets receive energy from the star 2.5 to 8 times more than the Earth receives from the sun.
But the third potential planet, which could also be a super Earth, could orbit in the habitable star area.
Sandra Jeffers, lead author of the study and lecture at the Institute of Astrophysics at the University of Göttingen in Germany, said in an email to CNN: “Star Galise 887 is the best star located close to the sun because it is an unusually quiet star, it is It is not like dark stars and there are no active explosions like the ones we see on the sun. “
And if the star were as active as our sun, its stellar winds would erode and sweep the atmosphere of the planets revolving around it.
Researchers believe that, since the star is calm, the planets surrounding it can preserve the nature of their atmosphere. It may have a thicker atmosphere than Atmosphere للأرض.
“If someone is to live on a planet around a red dwarf, it is better to choose a quieter star like the 887 Glefs,” says Melvin Davies, astronomy professor at the Department of Astronomy and Theoretical Physics at Lund University in Sweden.
The brightness of the star is also very constant, which means that it may be easier to discover the potential atmosphere of these planets, and to become ideal targets for research in upcoming space missions through James Webb Space Telescope Of the agency NASA.
The telescope, which is expected to be launched next year, can penetrate the atmosphere of exoplanets and help characterize their configurations.
“By studying the atmospheres of these planets, scientists will be able to understand whether conditions are valid for life on these planets,” said Jeffers.
It is mentioned that the scientific team working on the red dots project had found other exoplanets close to our sun, such as those around a star. Proxima Santouri and Najm Barnard.
The study of these nearby outer planets helps to learn more about the formation and evolution of stars and planets, as well as the search for extraterrestrial life.
Jeffers and her future science team are trying to monitor superstar Glies 887 to determine if the third signal is for another planet orbiting the star.
“If other observations confirm the existence of the third planet in the habitable zone, the dwarf star Galez 887 will become one of the most closely studied planetary systems of the solar system,” Davis wrote.
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