The artist's impression shows several planets running around superorbit.
Cool red dwarf TRAPPIST-1.
The new observations, combined with very complex analyses, have now made good estimates of the density of all seven regions on Earth --
The size of the planets indicates that they are rich in volatile substances and may be water.
Source: it was first announced a year ago that it caused a stir.
In orbit around a star, a world of different sizes is found. TRAPPIST 1.
From an astronomical point of view, the dim red dwarf is relatively close: only 39 light years away.
This means that it and its rocky world may be within the scope of the technology currently observing their composition.
The four planets sit neatly inside the star's "Blonde area" where it is neither too hot nor too cold to maintain liquid water.
Now, the Hubble Space Telescope and the European Southern Observatory have found that at least five planets are made up of up to five cents of water.
In contrast, the Earth's oceans account for only 0.
Although the Earth's surface covers about 02% of the Earth's mass.
There is so much water in a place that there is potential for the emergence of life, which makes astronomers sit on the edge of their seats.
Astronomers use the Hubble Space Telescope to learn more about the Trappist system by studying the atmosphere in front of the stars as they pass through, and these planets look like dark, from an observer's point of view, travel point.
The findings were published overnight in two papers in the journal Natural astronomy, astronomy and Astrophysical.
This infographic lists the main attributes of the seven TRAPPIST-
One Planet, and the four innermost planets of the same size in the solar system.
Source: supplier search CLUESThe Trappist-
1 The system is considered to be the best hope for finding evidence of alien life at present.
Scientists report that although there are still many unknowns on the planet's surface and atmosphere, new measurements do not rule out the possibility that they may even have primary life.
"So far, there is no indication that we are allowed to say that they are not suitable for residence," said University of Birmingham astronomers amauri Triaud.
The author of the study on this topic.
"All the traffic lights we have passed so far are green.
Steve griece's "Red Dwarf World" on the Sketchfab Special: Here's the chance of living around red dwarf because of having planets with organic life forms, "at this stage, we can't say, because they are very different from the only planet we know that has life (Earth)
Triaud told AFP.
"But they have the right features and are our best place to date (Solar)
System to search
"But the presence of liquid water is considered a necessary condition for life to survive anywhere. The TRAPPIST-
The system contains seven known Earth in total. sized planets. Three of them —TRAPPIST-1e, f and g —
Residential areas of stars (
Show as green in the artist's impression).
Source: supply life-
Collect more information about the Trappist center dwarf for the clearing research team
1 system, and improved measurements of the size and mass of each planet and its atmospheric composition.
All seven planets are considered potential water sources, but in the temperate "blonde" region, water is most likely to be found in liquid form.
At least five TRAPPIST.
It is now believed that there are "volatile substances" on the planet ". . .
Such as the atmosphere, ocean, or ice sheet.
This chart compares the size, mass and estimated temperature of TRAPPIST
There are planets in the solar system.
Color indicates temperature, and the black line matches the density and composition of Earth-like planets in the solar system.
The density of planets above the line is small, and the density of planets below the line is large.
Source: The water supplied may be in the form of gas or ice, or trapped in the depths of a rock sphere, the researchers said.
But four of the planets are warm enough that if protected by the atmosphere, water will not boil into space and water will become liquid.
"When we combine our new mass with our improved radius measurements and our improved knowledge of the stars, we get the exact density of each of the seven worlds, and got said about triaud.
The impression of the artist is compared to surround super-
Cool red dwarf TRAPPIST-
Reach the Earth in the same proportion
They are displayed in the same scale but not in the correct relative position.
Source: Trappist-compared to our solar system-
The family is very organized.
Track range from 1.
In 5 to 12 days, these planets will comfortably adapt to the distance between the sun and its nearest planet, Mercury. Trappist-
The mass of 1 is less than ten percent of the mass of our sun, and it is much colder, which explains why its planets can operate in such a close orbit.
"All seven planets are very much like Mercury, Venus, our Earth, the moon and Mars.
According to the research company
Simon Green, author of the University of burdock, the third and fourth planets from the star are "most likely" planets carrying some form of life.
"The more we know about these planets, the more suitable they seem to be to live," Green told AFP via email . ".
Features: Here is what life will look like around a red dwarf star
Professor de Mory, CSH
The author of the study, published in the journal Astronomy and Astrophysics, said: "We are able to accurately measure the density of exoplanets similar to Earth, including their size, quality, and radiation uncertainty is less than ten per cent, the first and decisive step in describing potential habitability.
This chart compares the mass and energy inputs of the seven TRAPPIST
1 planet, and the features of the four planets in the innermost part of the solar system.
Source: two planets in the innermost space, TRAPPIST-
1b and c have a dense atmosphere that could produce the runaway greenhouse effect as found on Venus. TRAPPIST-
1e is probably a rock with a very thin atmosphere. TRAPPIST-
However, about 1 1d out of 3 of the Earth's mass is surrounded by volatile substances such as water.
I don't know if it's gas, ice or liquid.
Three outer planets
TRAPPIST 1f, g and h-
It is thought to be too far away from the weak Red Dwarf to melt water ice.
So far, Hubble has not found the presence of hydrogen.
Surrounded by a rich atmosphere of any TRAPPIST world.
It is hoped that the new James Webb Space Telescope, which will start operating in 2019, will be strong enough.