Planet Earth Solar System Milky Way Galaxy

We live on a planet called earth that is part of our solar system.

Planet earth solar system milky way galaxy.

The first two are easy to grasp but. Many people are not clear about the difference between our solar system our milky way galaxy and the universe. Galaxies like solar systems are held together by gravity. It s a small part of the milky way galaxy.

Our galaxy the milky way also has a supermassive black hole in the middle. A galaxy is a system of solar systems and other stars. The artist s concept also includes a new spiral arm called the far 3 kiloparsec arm discovered via a radio telescope survey of gas in the milky way. Fact that earth based observations were complicated by the fact that the earth is embedded in the solar system.

Within it there are at least 100 billion stars and on average each star has at least one planet orbiting it. It was only after many centuries. A galaxy is a huge collection of gas dust and billions of stars and their solar systems. The product of some 4 6 billion years of cosmic construction our planet is.

The minor arms are primarily filled with gas and pockets of star forming activity. Let s look at the basics. 14 15 the nearest exoplanets are located 4 2 light years 1 3 parsecs from earth and orbit proxima centauri the closest star to the sun. Earth is well equipped as a planet and ideally placed in our solar system and galaxy to support life as we know it.

But where is our solar system. The sun s orbital radius is roughly 8 600 parsecs or slightly over half way to the galactic edge. The milky way galaxy the major arms consist of the highest densities of both young and old stars. Orbit of the solar system.

This means there are potentially thousands of planetary systems like our solar system within the galaxy. In galaxies the solar systems are separated by vast sections of mostly empty space. One orbital period of the solar system lasts between 225 and 250 million years. This galaxy is thought to contain more than 200 billion different.

The galaxy that contains the earth and its solar system is called the milky way. Our milky way galaxy is just one of billions of galaxies in the universe. There is evidence that extragalactic planets exoplanets farther away in galaxies beyond the local milky way galaxy may exist. The milky way galaxy is a very very big place.

The average diameter of the orbit of the solar system relative to the galactic center.