visionsoftheuniverse

visionsoftheuniverse - Stars also appear to rise in the...

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Stars also appear to rise in the east and set in the west 1) What is a constellation? a) An area of the sky b) Name some constellations (location) (where are they visible) i) Big dipper---toward the north, north star is part of little dipper which is veryclose ii) You can only see the southern cross in Australia because you can only see it south of the equator iii) Zodiac—whatever constellation is hidden in the night sky by the sun its that one. iv) Circumpolar stars (1) Polaris---north star. Star is above our north pole—never moves. If youre on the equator, its on your horizon. Were at the 42 nd parallel, so the north star is 42* above the horizon (2) WHERE WAS I? (a) At some point in the ecliptic (23* from equator, off a little) everything lies right above you. Between the tropic of cancer and tropic of…. (3) Meridian—imaginary line running from north to south in the night sky. Altitude=60*, direction, southeast. (4) Angular size—at night if you go out and hold your thumb out it should cover the moon. The moon is about one degree. Your thumb in the night sky is about one degree v) The signs used in astrology were set 1500 years ago. vi) Procession—26000 years. The earths axis wobbles like a top spinningon a
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visionsoftheuniverse - Stars also appear to rise in the...

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