ISP 205: Visions of the Universe - Physics & Astronomy

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And now, in pictures…StarA large, glowing ball of gas that generates heatand light through nuclear fusion© 2005 Pearson Education Inc.,publishing as Addison-Wesley
PlanetMarsNeptuneA moderately large object which orbits a star; itshines by reflected light. Planets may be rocky,icy, or gaseous in composition.The IAU members gathered at the 2006 General Assembly agreed that a "planet" is defined as a celestial body that (a) isin orbit around the Sun, (b) has sufficient mass © 2005 for its Pearson self-gravity Education to overcome Inc., rigid body forces so that it assumes ahydrostatic equilibrium (nearly round) shape, publishing and (c) has as cleared Addison-Wesley the neighborhood around its orbit. Pluto-dwarf planet!
Page 5: The Earth: our planet. Solar system
Page 9 and 10: AsteroidA relatively smalland rocky
Page 11 and 12: Solar (Star) SystemA star and allth
Page 13 and 14: GalaxyA great island of stars in sp
Page 15 and 16: 2) How did we come to be?Big bang a
Page 17 and 18: 3) How can we know what the univers
Page 19 and 20: Example:This photo shows the Androm
Page 21 and 22: Question: Why can’t we see a gala
Page 23 and 24: What have we learned?• How did we
Page 25 and 26: 1.2 The Scale of the UniverseOur go
Page 27 and 28: Let’s reduce the size of the sola
Page 29 and 30: How far away are the stars?On our 1
Page 31 and 32: How big is the Milky Way Galaxy?The
Page 33 and 34: Suppose you tried to count the more
Page 35 and 36: • Now let’s step through the Un
Page 37 and 38: January 1st: Big Bang.February: Mil
Page 39 and 40: What have we learned?• How big is
Page 41 and 42: How is Earth moving in our solar sy
Page 43 and 44: Our Sun moves randomly relative to
Page 45 and 46: Within the Local Group galaxies mov
Page 47 and 48: Are we ever sitting still?Question:
Page 49 and 50: What have we learned?© 2005 Pearso
Page 51: What have we learned?• Are we eve

ISP 205: Visions of the Universe - Physics & Astronomy

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