in Room 213!
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| Stars... |
| 1 | Stars are very large masses that produce their own energy. This, in turn, produces observable light and heat. Colors of stars do differentiate between different stars' energy. Red is cooler... Blue is hottest... Red stars are smaller... Blue stars are massive... |
| 2 | Nebula: forming space dust and gas - beginning of a star Hydrogen is the star's fuel that produces massive amounts of energy... Hydrogen and Helium mix and chemically react... |
| 3 | Stages of a star: A. nebula B. protostar C. star D. white dwarf/supernova (depending on mass) |
| 4 | Astronomical Unit (AU): the distance from the Earth to the Sun (93,000,000 miles) Light year: distance an object can travel in one year traveling at the speed of light (186,000 miles/second) |
| 5 | Constellation: "pictures and stories" of the arrangment of the stars in the night sky. The North Star - Polaris +90 (at North Pole) (visible all year) Some constellations are only visible in certain seasons of the year due to "lowness" in sky. Best know constellations: Big Dipper, Little Dipper, Orion, Canius Major, Ursa Minor, Leo, Pegasus, Gemini, Taurus, Pisces, Aries, Perseus - Zodiac... |
| 6 | Star Charts: Declination: how far north or south from the equator 0-90 degrees... Right Ascention: how far around the map 0-24 hours... |
| 7 | One light year is: • exactly 9,460,730,472,580.8 km (about 10 Pm) • about 5,878,630,000,000 miles (about 6 trillion miles) • about 63,241.1 astronomical units • about 0.306601 parsecs The figures above are based on a year of exactly 365.25 days (31,557,600 seconds). |
| 8 | [LINK]: convert light years to miles calculator [LINK]: convert miles to light years calculator [LINK]: convert miles to light seconds calculator |
| 9 | [LINK]: howstuffworks.com |
| 10 | [LINK]: nineplanets.org |
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