Astronomy 2232F/G Lecture Notes - Lecture 7: Terrestrial Planet, Light Shift, Methods Of Detecting Exoplanets
Document Summary
Planets anywhere in the universe will have the same weather patterns as earth and anywhere else in the solar system. Expect consistency of rain might not be water but molten iron. Need to develop tools strong enough to detect signatures of life. Existence of civilization detects back to the greeks: philosopher"s thoughts varied: one world alone, or infinite worlds with. To find a planet that"s just like ours. Initially we were finding massive planets, and now we"re able to find smaller ones: we know of between 100 and 10 000 confirmed exoplanets, started discovering the first earth-mass planets 2010/2011. Larger planets have a larger effect on their host star so easier to find in comparison different breeds of humans. We want to find habitable extrasolar earths to earth. Mostly half the stars in the milky way are smaller and not as bright, but they are more common.