Astronomy 1021 Lecture Notes - Lecture 13: Orbital Period, Solar Wind, Light Curve

• School: Western University
• Department: Astronomy
• Course: Astronomy 1021
• Professor: Robert Cockcroft

Document Summary

5th century bc earth is no longer flat. Mid-18t century, sun is no longer the center of the galaxy. Early 20th century, galaxy is no longer the center of the universe. Mid 1990"s solar system is not the only solar system. If star is "alice" then first exoplanet is "alice b" Alphabet is in order of discovery and not in order of position. In our solar system, we are close; we can see planets. Planets are big and far away from parent star. Only 44 planets so far discovered this way between 2008 and this year (2018) How much the more massive object moves depends on relative masses of the pair. In theory, this plot contains all the information about the layout of solar system objects. Only one star wobble detected so far (gliese 876) Patterns that look like planetary transits need to be ruled out. Doppler method will produce a curve as shown to the left.