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Lecture Summary 2 - REMINDERS Homework#1 is due Sept 16 at...

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REMINDERS: Homework #1 is due Sept. 16 at the beginning of lecture–see p. 7 of syllabus. Please read INSTRUCTIONS at the top of this page before beginning. The Astrology Experiment is due at the beginning of your discussion section on Sept. 21 or 22–see pages 9 & 10 of syllabus. This assignment requires 4 days, but they don’t have to be consecutive. Keep up with the READING. Study handouts and review your notes. LECTURE SUMMARY (9/7 & 9/9) We added the Sun’s motion, the ecliptic, to our understanding sky appearances. You will review sky appearance in discussion next week and will do a laboratory using a celestial sphere the following week. Be sure to review your notes so that you can clear up any problems in discussion section. The terms Rotation and Revolution were introduced along with their effects on what we observe in the sky. Make sure that you can use these terms correctly. A yellow handout was given to accompany lecture on seasons. Seasons are NOT caused by variations in distance from the Sun. The apparent position of the Sun changes over the course of a year, because the rotational axis of the Earth is tilted at 23 ½ degrees. The position of sunrise
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