ASTR 103- Final Exam Guide - Comprehensive Notes for the exam ( 65 pages long!)
Document Summary
Use prefixes to eliminate the use of scientific notation (simplify) Ex: 1. 49598 x 10^11 = 149. 598 x 10^9 = 149. 598 gm. Can try and remember by looking at the opposites. Don"t mess with pico, deci, deka, hector, tera. Most used: nano, micro, milli, centi, kilo, mega, giga. The distance between the sun and the earth. Typically used to describe distances within our solar system o. Light year: 1 ly= 9. 5 x 10^12 km (6 trillion miles) The distance that light travels in one year"s time. Even though it has year in it, this is a measurement of distance, not time. The further that you look in space, the further back you are listening o. Ancient astronomy and intro to the celestial sphere. Only rises due east two times in the year. Summer solstice: when the sun rises the most north it can. Winter solstice: when the sun rises the most south it can.
