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Constellations. What did the ancient people use stars (patterns of stars) for?. Navigation – sailing, travel Seasons – when to plant and harvest Preserve myths, traditions, etc Group the brighter stars into patterns, - constellations. Patterns of stars. Boundaries.
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What did the ancient people use stars (patterns of stars) for? • Navigation – sailing, travel • Seasons – when to plant and harvest • Preserve myths, traditions, etc • Group the brighter stars into patterns, - constellations
Patterns of stars Boundaries http://www.astro.virginia.edu/class/oconnell/astr130/im/
Constellation • One of the 88 named Regions of sky defined by the International Astronomical Union (IAU) • Identified with the officially recognized Patterns of Stars that lie within the boundaries of the region
What are the 88 Constellations? • 14 men and women • 9 birds • 19 land animals • 2 insects • 10 water creatures • 2 centaurs • 1 head of hair • 1 serpent • 1 dragon • 1 flying horse • 1 river • 29 inanimate objects, include scientific instruments (Microscopium, Telescopium)
Asterism • A generally recognized smaller/cuter pattern of stars that is not one of the officially recognized constellations • Whether or not a region of sky is named after it – yes: constellation; no: asterism
Circumpolar Constellations • A Constellation that NEVER rises or sets as seen at a certain latitude • Six circumpolar constellations seen in Pasco (28º N, 82º W) • Ursa Major – Larger Bear • Ursa Minor – Smaller bear • Cassiopeia – Queen • Cepheus – King • Draco – Dragon • Camelopardalis – The Giraffe
Circumpolar Constellations in Pasco Cassiopeia Ursa Major Ursa Minor • www.acmecompany.com Draco Cepheus Camelopardalis
Constellation Resources • Workshop CD • Websites: • http://earth.google.com./sky • http://www.astro.wisc.edu/~dolan/constellations/ • http://en.wikipedia.org/wiki/Constellation • http://amazing-space.stsci.edu • Especially http://amazing-space.stsci.edu/tonights_sky/index.php • http://www.synapticsystems.com/sky/learnsky.html • Books • Constellations Dot-To-Dot • Astronomy & More (StarLab Manual)