Solar system. Planets of the solar system
Its center is a huge star called the Sun. It is the closest star that is billions of years gives us light and heat. Without it, impossible would be life on the planet. Around it revolve the planets, of which eight are known today, as well as other celestial objects.
Schematically, the structure of the solar system is as follows:
Man is always interested in the question thus arose our solar system. But it was a long time before scientists were able to answer this question. There were many versions and assumptions on this issue. And today, astronomers are continuing their investigation.
According to a hypothesis of Kant-Laplace five billion years ago there was only a gas cloud. It moved through the universe, but at some point he undergoes certain processes. Then there is compression and then begins the rotation, the center of rotation is the fastest. The temperature at the center of the cloud began to grow and formed a protostar that later became the Sun. The nebula continued to spin, and the star are unable to absorb all the substance of the nebula, they are attracted, experienced, forming planetesimal. One of them appeared on the planet. Continue reading
While it “calculated” on the computer
In 2006, the Solar system lost one of the nine planets — Pluto stripped of planet status due to negligible size. But the discovery of American scientists threatens to return the ninth planet in the system — found a new celestial body, claiming the title.
The staff of the California Institute of technology Michael brown and Konstantin Batygin has published a paper in the reputable scientific journal “Astronomical journal” about his study, in which they “discovered” a new planet in the Solar system.
Celestial body has a mass of 5-10 times larger than our planet, and is about 20 times farther from Earth than Neptune. Despite the fact that Neptune is the most distant planet, until it 4300 million kilometers. Accordingly, before “the ninth planet” – about 8600 million. The problem is that open planet. while no one was looking through a telescope, it was discovered through computer simulation. However, the accuracy of such simulations is very high today. Continue reading
Not so long ago such a statement would cause an uproar in any self-respecting astrophysicist and most likely, it ended in the usual enumeration of the several variants of the origin of our Solar system. Today, however, a number of researchers not only did not reject this version and think its main. What is the reason? We will try to understand.
It all started with sightings NASA space Observatory named “Kepler”. The satellite was launched in 2009, and in 2020 due to the loss of orientation in space failed. The Observatory was equipped with incredibly sensitive Photometer and specially designed to search for exoplanets, i.e. planets outside our Solar system like Earth. The ability of the apparatus to observe more than 100,000 stars at the same time very quickly gave the opportunity for scientists to get incredible data about other Solar systems.
In early 2010 the Observatory was discovered planetary system Kepler-33. The star Kepler-33, located in the constellation of Cygnus, was bigger than our Sun, and planets revolving around it, was very close to the parent star. Continue reading