NATS 1745 Study Guide - Final Guide: Main Sequence, Norman Lockyer, Infrared Telescope

• School: York University
• Department: Natural Science
• Course: NATS 1745
• Professor: Mary- Helen Armour

Document Summary

Exam review points: descartes developed the cartesian coordinate system, descartes believed in a geometric universe, developed model for nature of motion and matter. Set up solar system model as swirling vortices. Edmund halley convinces newton to publish and basic laws called newtonian mechanics" in 1678 philosophaie naturalis. Saturn, oblateness of earth. law for gravity is from kepler"s work. His catalogue published called historia coelestis britannica" in 1725. first royal observer at greenwich measured positions of over 3000: two methods used ; lunar distance ( moon as a clock) and mechanical device ( heavenly bodies observation) Christian huygens as rings of saturn observes behaviour of saturn turns out to change shape. Later explained by: christian huygens also discovers saturn"s largest moon titan, christian huygens. & bother grinding lenses building telescopes 45ft, 60ft and 120ft: cassini first to observe gaps" in saturn"s rings.