ASTRO 1 Lecture 12: 12
Document Summary
Crystal martin of ce hours and lecture schedule at http://web. physics. ucsb. edu/ Methodological intro: science is falsi able (provable, science is repeatable. Scienti c theory: logical self-consistent model or framework for describing the behavior of related set of natural or social phenomena, originates from experimental evidence, ( nish page 15) Scienti c method good but only if it answers the questions you want answered. A planet pulling on a star makes it wobble a small amount: we can measure how much a star wobbles and therefore see if it has planets. The darkness in milky way is smut not just empty space. We are 25k ly away from center of galaxy. There are a billion galaxies we can see. Page 39 and 40 read to help with homework. Thursday, september 22, 2016: get a notebook too so you can do work, angular size can be changed by changing size or distance of object.
