Our universe is simply huge, and it seems to us thatmore than the globe nothing can be, but it is not. There are planets much larger and more massive. For the whole universe, our Earth is just a grain of sand, lost in it. The solar system is only one of the elements of the Galaxy. The sun is the main component of the Galaxy. Eight planets revolve around the Sun. And only the ninth - Pluto - because of its gravitational forces and mass removed from the list of rotating planets. Each planet has its own parameters, density, temperature. There are some that consist of gas, there are giant, small, cold, hot, dwarfish.
So what is the largest planet known for?this moment? In the spring of 2006, an event occurred that shook the theory of celestial bodies. At the Lovell Observatory (USA, Arizona) in the constellation Hercules was discovered a huge planet, exceeding the dimensions of our Earth twenty times. Of the existing open for today - this is the largest planet in the universe. It is hot and similar to the Sun, but it's still a planet. It was called TrES-4. Its dimensions exceed the dimensions of the largest in the solar system of the planet - Jupiter - 1.7 times. It is a giant gaseous ball. TrES-4 consists mainly of hydrogen. The largest planet makes revolutions around the star, which is located 1400 light-years away. The temperature regime on its surface is more than 1260 degrees.
There is a sufficient number of giantplanets, but to date not more open than TrES-4b. The largest planet in size exceeds Jupiter by more than 70%. A huge gas giant could be called a star, but its rotation around its star GSC02620-00648 relates it definitely to planetary celestial bodies. As the responsible officer of the observatory G.Mandushev informed, the planet is more gaseous than solid, and it is possible to immerse in it only. Its density varies from 0.2 g per cubic centimeter, which is comparable only with balsa (cork) wood. Scientists-astronomers are lost in conjecture: how this largest planet with such a low density has the ability to exist. The planet TrES-4 is also called TrES-4b. Its discovery is due to amateur astronomers who discovered TrES-4 through a network of small automated telescopes located in the Canary Islands and in the state of Arizona.
If you watch this planet from the ground, it is clearit is evident that it moves along the disk of its star. The exoplanet revolves around the star in just 3.55 days. The planet TrES-4 is heavier in comparison with the Sun and has a higher temperature.
Discoverers were Lowell employees, andlater astronomers Harvard University and the Hawaiian Observatory W.M. Keck confirmed this discovery. Scientists at the Lovell Observatory have an assumption that the largest planet, TrES-4, is not the only one in this constellation, and that it is possible that there may be another planet in the constellation Hercules. Employees Lowell in 1930 opened the world's smallest planet in the solar system - Pluto. However, in 2006, Pluto, in comparison with the giant TrES-4, began to be called a dwarf planet.