Astronomy 1210 -- February 15, 2012 (12)
Important Topics from Last Time
- Exam 1 results will be available this afternoon.
- Exam 2 Preview questions are available.
- The "constellation of the week" is Pegasus - see also
Today's Key Topics
- Kepler's Three Laws of Planetary Motion
- Science and the scientific method
- Galileo's telescopic discoveries
- Newton's laws of motion
- Today: Cosmic Perspective Chapter 3, 4.1 and 4.2
- Next Lecture: more on Sections 4.1 and 4.2
- The Moon is a waning crescent in the pre-dawn sky.
- It will be visible for only a couple of hours prior to sunrise - less with each subsequent day.
- It's up in the daytime sky most of the day, setting a few hours before the Sun, but difficult to see because it is lost in the Sun's glare.
- Look for Venus in the western evening sky (you can't miss it) and Jupiter high overhead in the early evening.
- Pegasus is low in the northwest off to the "right" of Venus. It's defined by four equally bright stars defining an large empty square, the "Great Square of Pegasus."
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