Planets of the solar system.

Solar system – 8 planets and over 63 of the satellite, which are opened more often, several dozen comets and many asteroids. All cosmic bodies move in their precise directional trajectories around the Sun, which is 1000 times harder than any body in the solar system combined. The center of the solar system is the Sun – the star around which orbits the turning of the planet. They do not emit heat and not light, but only reflect the light of the Sun. In the solar system now officially recognized as the 8 planets. Briefly, in order of distance from the sun, we list them all. And now a few definitions.

A planet is a celestial body that must satisfy four conditions:

1. the body must revolve around the star (for example, around the Sun);

2. the body must have sufficient gravity to have a spherical or similar shape;

3. the body should not be near its orbit of other large bodies; Continue reading

On the outskirts of the Solar system walk comets

Some comets, rotating now in the Solar system, were originally in other star systems and ended up here due to the fact that the Sun is their “kidnapped”.

To this conclusion came a group of astronomers from the North-West research Institute in USA.

“If the results of our models and calculations are correct, then many comets that are present now on the outskirts of the Solar system originally was not here,” says scientific specialist of the Institute’s Hal Levison.

From his point of view, a significant proportion of comets that are now in the zone of the Solar system known as the Oort Cloud is aliens from other star systems.

“We know that stars are formed in clusters. Sun was born inside a huge community of other stars that were formed from a single cloud of gas and dust. In this cluster the stars were so close to each other that were able to “steal” different objects, such as comets through its gravity,” he says. Continue reading

Solar system, its model and structure

The universe (cosmos) is a whole world around us, limitless in time and space and infinitely diverse in forms, which takes forever moving matter. The eternity of the Universe in part you can imagine on a clear night with billions of different size luminous shimmering dots in the sky, representing the distant worlds. Rays of light at a speed of 300 000 km/s from the most remote parts of the Universe reach the Earth about 10 billion years.

According to scientists, the universe resulting from Big Bang 17 billion years ago.

It consists of clusters of stars, planets, cosmic dust and other cosmic bodies. These bodies form a system of planets with satellites (for example. Solar system), galaxies, Metagalaxy (accumulation of galaxies).

Galaxy (postdegree. galaktikos – milk, milky, from the Greek gala – milk) — a vast stellar system that consists of many stars, star clusters and associations, gaseous and dust nebulae, as well as individual atoms and particles scattered in space. Continue reading

Open planet in honour of Day of Astronautics
One day in April Gagarin made his flight, and today we are on such a universal scale occasion will transcend time and space. Time is not linear, reality is relative,…

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Interplanetary and orbital space flights.
Radiation risk for astronauts (radiobiological rationale) The book covers a fairly wide range of materials concerning the sources of cosmic rays affecting astronauts in the implementation of interplanetary and orbital…

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How long to fly to Mars
The planet Mars is one of the brightest objects in our night sky, even visible to the naked eye and resembles a bright red star. About every two years, our…

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