Scientists susekam scratched, and by the end of 2018 got another exoplanet the size of Neptune
If you live somewhere the aliens, then it must be at least drying and not complete vacuum. So scientists are looking for exoplanets in deep space so that in the future it is possible to find living organisms on them.
Recently, it was possible to detect with the help of the Kepler telescope another previously unknown exoplanet. The study of this object will provide an opportunity to learn more about the past of our Earth and the Universe as a whole. Scientists find relatively few rocky worlds twice the size of the earth, but less in most of it is always a rocky planet. Scientists do not yet know why this is happening, but they are trying to find a good answer to this interesting question.
First appreciate that scientists, when they find an exoplanet is of course its size and weight. If the planet found a transit method, then part of the circle and the angle you can find the radius of the planet, knowing its composition can be roughly calculated and the mass, but it is not so accurate as we would like. In order to make some justification for how and why such planets are born more often, and such less often, you need to have at least hundreds of planets of different types with accurate mass and size. This base with great difficulty scientists are now working out.
Created the Kepler telescope was designed to study distant exoplanets. As part of the use of the power of this device, scientists are implementing a separate program to search for short-periodic planets. About 40 similar planets have already been found.
One of the last is the exoplanet K2-263b
, which is in orbit around the star a little less than our Sun. This star system is at a distance of 536 light years from Earth, the distance was established thanks to the satellite ESA Gaia ("Gaia"). Exoplanet was 2.41 times larger than the Earth in size, but it was also with a rocky surface. Scientists believe that the size data lie in the corridor with an error of 5%.
At this time, a completely different group of scientists uses the precision spectrometer HARPS-N, which is mounted on the island of Palma in Spain, learned with pretty good accuracy the speed of rotation of the planet in its orbit. Now and weight to calculate quite accurately is not a problem, the benefit formulas abound, and the data is quite tolerable.
If you are interested in this study, you can read more about it in the scientific journal Monthly Notices of the Royal Astronomical Society.
The mass of the new exoplanet in the lists K2-263b
is 14.8 mass of the Earth, which means that the density of the substance on it is such that a cubic centimeter weighs only 5.6 grams. On Earth, this parameter is also not very different and is 5.5 grams per cubic centimeter. And if so, then on this planet as much ice and rocky rocks, and the landscape is more like the Earth than anything else. In General, as I understand it, scientists have once again confirmed their hypothesis about the formation of planets. NOTHING new, except that the exoplanet appeared in the list under the next number and that about it except that it is, or what is not known.
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