2 - Motion in the Sky

2 - Motion in the Sky - Slide 1 Lecture 2 Motion in the Sky...

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Slide 1 Lecture 2 Motion in the Sky ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 2 Yearly Motions The Earth travels around the Sun once every year. The Earth is tilted by 23.5 degrees with respect to the orbital plane. E E E E http://www.astro.uiuc.edu/projects/data/Seasons/seasons.html ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 3 The Sun lines up with different constellations during the year… These stars are overhead during the day. Sun is too bright to see them. These stars are visible at night. Presently These stars are visible at night. These stars are overhead during the day. Sun is too bright to see them 6 months later ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________
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This note was uploaded on 12/24/2009 for the course ASTRO 311 taught by Professor Beeken during the Fall '09 term at Wisconsin Colleges.

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2 - Motion in the Sky - Slide 1 Lecture 2 Motion in the Sky...

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