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Lecture

Lecture 4

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Department
Origins
Course
ORIGINS 2B03
Professor
Laura Parker
Semester
Fall

Description
Lecture 4Wednesday September 28 20111213 AMThe Sun makes up 998 of the mass in the sun aloneThe sun is a normal midlife starAt the end of its life it will expand and burn away the EarthOur solar system is revolving around the Milky Way Galaxy and takes about 200 million years Sun from the Earth is 1 AU Pluto is 40 AU from the SunAs long as your outside something gravity doesnt effect youIn pictures if something is bright it can be either closer or actually be bigger and brighterMeasuring the distance from the StarAny star that is near by is moving called ParallaxThe distance the star moves is equivalent to how far the star is the greater the movement the closer the objectParallaxonly works for stars closer to usParasecs or light years another unit1 parasec33
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