Astronomy
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ASTRONOMY PowerPoint PPT Presentation


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ASTRONOMY. The study of the universe.

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ASTRONOMY

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ASTRONOMY

The study of the universe


astronomy – the study of the universeastronomer – scientist who studies astronomyconstellation – a pattern made by a group of starstelescope – an instrument used to view far away objectsobjective – the convex lens in a telescope ( )eyepiece – the concave lens in a telescope ) (


Two ways planets move

1) rotate

2) revolve


INNER PLANETSMercury, Venus, Earth, Mars

  • SURFACE: rocky, terrestrial

  • MOONS: few or none

  • RINGS: none

  • ORBITS: faster than outer planets

  • ROTATIONS: slower than outer planets


OUTER PLANETSJupiter, Saturn, Uranus, Neptune

  • SURFACE: mostly gas; “gas giants”

  • MOONS: many

  • RINGS: many

  • ORBITS: longer than inner planets

  • ROTATIONS: faster than inner planets


MERCURY

closest to Sun, but not the hottest; smallest planet


VENUS

2ND from Sun; hottest planet; said to be Earth’s twin because of its similar size


EARTH

3rd from Sun; only planet known to support life


MARS

4th from Sun; called the Red Planet because of the rust on its surface


JUPITER

5th from Sun; largest planet; has a large Red Spot that is a huge wind storm


SATURN

6th from Sun; known for its many beautiful rings


URANUS

7th from Sun; bluish color due to methane gas; rotates sideways


NEPTUNE

8th from Sun; bluish color; considered the twin of Uranus; has a Dark Spot that is a storm


STARS

1. A STAR MAP is a tool used to locate certain stars and constellations.2. The stars that are visible to you depend on YOUR LOCATION ON EARTH AND THE TIME OF YEAR.3. Why do stars appear to move across the sky? EARTH’S ROTATION ON ITS AXIS4. POLARIS, OR THE NORTH STAR, APPEARS TO STAY IN ABOUT THE SAME PLACE ALL THE TIME.


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