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Physical Science PHS 101. Test 6. Beiser Chapter 43 - 47 Astronomy. 452 South Anderson Road Rock Hill, SC 29730 www.yorktech.com. Beiser p.322. Chap 43. Earth & Sky. Beiser p.322. Ptolemaic System. Beiser p.322. Copernican System. Beiser p.322. Retrograde Motion. Kepler’s Laws.
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Physical SciencePHS 101 Test 6 Beiser Chapter 43 - 47 Astronomy 452 South Anderson Road Rock Hill, SC 29730 www.yorktech.com Beiser p.322
Chap 43 Earth & Sky Beiser p.322
Ptolemaic System Beiser p.322
Copernican System Beiser p.322
Kepler’s Laws 1) Orbits are ellipses. 2) Planets sweep out equal areas in equal times. 3) When revolving around the sun, the square of the time over the cube of the distance is the same for all planets. where C is the same number for all planets around the same body Beiser p.322
Earth Movement Revolution – a 365 day orbit trip around the sun Rotation – a 24 hour spin on our axis Precession – a 26,000 year wobble Beiser p.322
Earth Grid Latitude Longitude Charlotte: 35O N 81O W NY, NY: 40O N 74O W LA, CA: 34O N 118O W Beiser p.322
Space Grid Beiser p.322
Chapter 44 Solar System Beiser p.331
Asteroids Beiser p.331
Comets Beiser p.332
Meteors Beiser p.333
Chapter 45 The Sun Beiser p.338
Layers of Sun Beiser p.338
Sunspots Beiser p.338
Chapter 46 The Stars Beiser p.343
Brightness of Stars • Luminosity – amount of light put out by star • Apparent Magnitude – brightness from Earth • Absolute Magnitude – brightness from 10 parsecs (~ 32.6 light years or 3.1 x 1014 km) Beiser p.343
Hertzsprung-Russell Beiser p.343
Life of a Star Beiser p.345
Chapter 47 The Universe Beiser p.350
Our Galaxy • The Milky Way Galaxy • ~400 billion stars • 100,000 light years across • We are 30,000 light years from center • 200 million years to orbit the center Beiser p.350
Milky Way Beiser p.350
Night Sky Beiser p.350
Other Galaxies Beiser p.350
It’s a Big Place • The Universe • ~ 400 billion stars in a galaxy • ~ 80 billion galaxies • ~ 3 x 1022 Stars Beiser p.350
Little Dipper Constellations Cygnus Cassiopeia Leo Big Dipper Hercules Beiser p.350
Sky Map Beiser p.350
Zodiac Beiser p.322 Beiser p.350