Astronomy 1210 -- April 2, 2012 (28)
Important Topics from Last Time
- Telescope Observing should be clear tonight!
- Exam 3 review questions are available. Test is one week from Friday.
- The "constellation of the week" is Auriga - see also
Today's Key Topics
- The origin of the Earth's Moon
- Consequences of a rare Moon
- The Earth's surface and plate tectonics
- Why planets have atmospheres
- Evolution of the Earth's atmosphere
- The role of life in altering Earth's atmosphere.
- Today: Cosmic Perspective Sections 10.1, 10.2, 10.6
- Next Lecture: Section 12.4
- Check out Venus in front of the Pleiades star cluster tonight. Try out binoculars if you have them.
- The gibbous Moon will approach and pass Mars over the next couple of days (as well as the bright star Regulus in Leo.
- Jupiter and Venus are now moving apart. If you've been watching, Venus is almost stationary with respect to the horizon at sunset while Jupiter sinks lower in the west each day heading for conjunction in a couple of months.
- Mars is prominent in the eastern sky in the early evening. Its red color is evident.
- Auriga is a loop of stars high overhead to the northwest at sunset marked by the bright star Capella - the 5th brightest star in the sky visible from Charlottesville.
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