Download - 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