light-years on a planet of liquid water there may be many times than the earth

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seven planets astronomers to the trappist-1 have a better understanding.

according to the existing data before february 2018 trappist portrayed-1 seven planets might look in the planetary system, the data include the diameter of the planet, and the distance between the star quality.nasa

trappist 1 planetary system.nasa

trappist-1 e.nasa

40 light-years seven sisters trappist planetary system-1 since it was discovered, has been dedicated to the research.according to the recently published in the journal astronomy and astrophysics, a paper, astronomers now have a better knowledge of the composition of the planet.

according to the spitzer space telescope and provided by the kepler space telescope observations, astronomers with higher precision, calculate the density of the planet, and the complex simulation calculation data.the results show that the main constituent of the seven planets are all rocks.not only that, some of the planets and water, and the quality of water on the planet as a whole in the proportion of up to 5%, is 250 times of sea water the earth.

water on the seven planets form depends on them to get how many calories from star.their main is a"super cool dwarf", the quality is only 9% of the sun.in the main closest planet, water may exist in form of water vapor in the atmosphere;from the distant planet, star water may freeze into ice surface of the planet.seven planets in a trappist-1 e contains rock component is the highest, while at the same time, water is the most promising in a liquid is present in the planet's surface.

liquid-the basic elements of life could exist, the planet's atmosphere will impose important influence.the hubble space telescope patrolled the six of the seven planets, and includes the study of four planets, published in the journal nature:astronomy.the research results show that the seven planets in at least three, d, e and f of atmospheric composition and hydrogen rich gas giant planets of the solar system expansion different atmosphere.the hydrogen acts as a greenhouse gas, can let the distance stars closer planets become hot, become inhospitable.

in 2016, people in the hubble observations also found no c, d the evidence rich atmosphere of hydrogen on the planet.as a result, all these findings point to the fact that such a possible, namely the planet's atmosphere are inclined to miniaturization, and the earth, venus and mars's atmosphere is similar.only the atmospheric composition on the planet g has yet to be identified.

these research results, are in webb space telescope pave the way for the future.the webb space telescope, is scheduled to launch in 2019, it will further probe into the planet's atmosphere, can detect carbon dioxide, methane, such a heavy gas, water and oxygen.astronomers can through these ingredients to speculate whether life could exist, or whether habitable planets.

the trappist trappist-1 is a small telescope"ling more planets and satellite stars(transiting planets and planetesimals small telescope)"of the english abbreviations.the telescope in chile, it took the lead in february 2016 to found the two of the seven planets.then the spitzer space telescope in the foundation, under the cooperation of these two planets are confirmed, and further found another five planets in the system.

trappist-1 f to simulate the surface of the planet.nasa

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