ASTRON 2B03 Lecture Notes - Lecture 19: Gas Giant, Gliese 581, Circumstellar Habitable Zone
6 Nov 2015
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Document Summary
Astro lecture 19: the strength of the dip in brightness depends on the relative sizes of the planet and the star, strength in dip and brightness you see, depends on size of planet relative to size of star. Does not depend on how far away the planet is from the star. A low mass planet far from its parent star: amount of velocity change, velocity on x-axis, amount of velocity change is easier to detect when the planet is more massive and closer to planet star. Closer to us does not block more light. 4. the nearest planets: closest planets are easier to study. Kepler has to see 3 dips in brightness (planets that take 2 years to orbit: far bottom left: very close to us, within 2 parsecs to us, exoplanet, or is it, that planet is near alpha centauri star. It is a binary star and planet orbits the brighter star.
