Planet Earth Solar System Milky Way Galaxy

Orbit of the solar system.

Planet earth solar system milky way galaxy.

Our solar system consists of our star the sun and its orbiting planets including earth along with numerous moons asteroids comet material rocks and dust our sun is just one star among the hundreds of billions of stars in our milky way galaxy. There is evidence that extragalactic planets exoplanets farther away in galaxies beyond the local milky way galaxy may exist. But where is our solar system. Earth is well equipped as a planet and ideally placed in our solar system and galaxy to support life as we know it.

The product of some 4 6 billion years of cosmic construction our planet is. A galaxy is a system of solar systems and other stars. Galaxies like solar systems are held together by gravity. This galaxy is thought to contain more than 200 billion different.

That s just how many we ve found so far. A galaxy is a huge collection of gas dust and billions of stars and their solar systems. In galaxies the solar systems are separated by vast sections of mostly empty space. Let s look at the basics.

Within it there are at least 100 billion stars and on average each star has at least one planet orbiting it. The sun s orbital radius is roughly 8 600 parsecs or slightly over half way to the galactic edge. Our planetary system is the only one officially called solar system but astronomers have discovered more than 2 500 other stars with planets orbiting them in our galaxy. Earth the solar system oort cloud local fluff local bubble orion arm milky way galaxy local group virgo supercluster laniakea supercluster universe.

A galaxy is held together by gravity. Our milky way galaxy is just one of billions of galaxies in the universe. Many people are not clear about the difference between our solar system our milky way galaxy and the universe. The average diameter of the orbit of the solar system relative to the galactic center.

The minor arms are primarily filled with gas and pockets of star forming activity. This means there are potentially thousands of planetary systems like our solar system within the galaxy. The first two are easy to grasp but. 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.

One orbital period of the solar system lasts between 225 and 250 million years. We live on a planet called earth that is part of our solar system. Our solar system is just one specific planetary system a star with planets orbiting around it. It s a small part of the milky way galaxy.

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.