astronomy ppt

The Galaxy That Is!By LaTya Plowden

Welcome to the Milky Way

The Solar Systemo The Solar System is made up of eight interesting planets in our galaxy.o The planets orbit around the Sun. The Sun has its gravitational pull.o The Solar System also contains other space objects, such as satellites, asteroids, comets, and much more.oOur Sun is a medium-sized star that has six layers

Mercury

oMercury is the very first planet to the SunoIt is an inner rocky planet that has no atmosphere oBecause it has no atmosphere, it is not the hottest planet.

Venus

oVenus is the 2nd planet in the Solar SystemoThis is actually the hottest planet

Earth

oEarth is the 3rd planet oIt is by far the only planet that supports lifeoSome scientists believe that Luna (the Earth’s moon) was a piece of Earth oThere are about eight layers of its atmosphereoIt rotates faster when it’s near the Sun

Mars

oThe last of the inner planetsoIt is also known as the Red Planet and has huge canyonsoMany believe/believed that there is life on MarsoIt has two moons; Phobos and Deimos oIt has lost its magnetic field oThis planet has high levels of carbon dioxide!

Asteroid Belt

oThe Asteroid Belt separates the inner planets and the outer planetsoAsteroids are made of rock-like material that are pulled in due to the Sun’s gravitational pull

Jupiter

oJupiter is the 5th planet and the 1st of the outer planetsoIt has 63 moons. It has the most moonsoIt rotates very fastoIt is 71% of all planetary mass in the Solar SystemoIt has very unique wind patterns

Saturn

oSaturn is the 6th planet from the Sun and has a huge magnetic fieldoIt is the 2nd planet with the most moonsoIt has a strange bulge in the middle and flattened polesoThis planet consists of a liquid metallic hydrogen core

Uranus

oNow we have Uranus, the 7th planetoThis planet has 13 rings; two in which are very faroIt is the third largest in diameter oIt takes 84 Earth years to revolve around the Suno Some scientist believe that Uranus used to rotate horizontally, but perhaps an asteroid hit it, causing it to tilt

Don’t laugh

Neptune

oFinally, we have Neptune oIt has very fast and strong windsoThe Great Dark Spot could “swallow” almost all of Earth!oIt has a similar atmosphere to Jupiter

What Ever Happened to Pluto?

oScientists thought that Pluto isn’t a planet because it doesn’t meet all of the qualifications of being a planetoIt is now called a dwarf planet

Other Galaxies

o There are obviously different types of galaxieso A spiral galaxy has “arms’ that curves out from the

baseo An irregular galaxy has no recognizable, distinct shapeo An elliptical galaxy has an elliptical or round shape