Smallest to Largest ? Universe Solar System Galaxy.

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Presentation transcript:

Smallest to Largest ? Universe Solar System Galaxy

What objects are in the solar system?

Yakko’s Universe https://www.youtube.com/watch?v=f_J5rBxeTIk

Distances in Space

Units of Length ?

ASTRONOMICAL UNITS AU’s are used to measure within our solar system. 1 AU = 150 million km 1 AU = 93 million miles 1 AU = the distance from Earth to the Sun

Distance from the sun Planet km AU Mercury 57.9 million 0.39 Venus 0.72 Earth 149.6 million 1.0 Mars 227.9 million 1.5 Asteroid Belt 329.1 – 478.7 million 2.2 - 3.2 Jupiter 778.3 million 5.2 Saturn 1.427 billion 9.5 Uranus 2.871 billion 19.2 Neptune 4.497 billion 30.0 Pluto 5.913 billion 39.4

LIGHT YEARS Speed of Light = 3.0 x 108 m/s A Light-Year is the distance light travels in a year 1 Light Year = 95 Trillion Km or 6 trillion miles the closest star, Alpha Centauri is 4.3 light-years away the North Star is 431 light-years away the Milky Way Galaxy is 100,000 light years in diameter