ASTR 1101 Lecture Notes - Cosmic Dust
Document Summary
The use of math and physics to figure out how the universe and everything in the. Tries to figure out how things: form, move, their life as that specific object, are destroyed, move predict things. They study: planets, stars, galaxies, moons, asteroids, comets, space dust, gas between the star, groups of galaxies, black holes. Possibily the oldest of sciences in the olden days: people considered that the movement of the stars and other objects in the sky were a significant importance in life and people needed to know how that worked. Relation to astronomy: because of astonomy, farmers knew when to: start harvesting their goods. Without the sun, there would be a nonexistent earth rises along the eastern horizon. The rising and setting location changes over set amount of time periods (months and seasons) Travels along a different path of the sky during the day.
