ASTR 101 Lecture 9: Astronomy Chapter 3: the Science of Astrology
12 Dec 2017
School
Course
Professor
Document Summary
How is modern science rooted in ancient astronomy. In ancient times they could predict season from the orientation of the crescent moon. Days of the week are named after the visible planets. Putting sticks or buildings in the group so the sun would cast a shadow that looked like what. Solar calendar is 365 days (and leap years) Lunar is 12x29. 5 days or 355 days. Solar calendar is synchronized with the seasons. Lunar calendar is synchronized with lunar cycle (phases of the moon) Jewish calendar is the lunar calendar which adds a 13th months in the 3rd, 6th, 8th, 11th, The aim is to sync the lunar and solar calendars - lunar is 11 days longer we now know as the arms of a clock. Greeks were the rst people known to make models of nature. They tried to explain patterns in nature without resorting to myth or the supernatural. 7/360 x (circumference of the earth) =
