Astronomy 1210 -- April 11, 2012 (32)
Important Topics from Last Time
- Exam 3 is Friday in class.
- Make up office hours today 10:00-11:00 and 1:30-3:00
- Review session today at 4:30 in Wilson 301.
- Exam 3 review questions are available on the Exams page.
- The "constellation of the week" is Gemini - see also
Today's Key Topics
- Icy satellites
- Geological activity in the outer solar system
- Small vs. large icy satellites
- An active Enceladus
- Radar imaging of the surface of Venus
- The history of the Venusian surface
- Historical Exploration of Mars
- Today: Cosmic Perspective Sections 9.5 and 10.5 and 9.4 and 10.4
- Next Lecture: Exam 3; More on 9.4 and 10.4 after that
- The Moon is nearing last quarter and is low in the South at sunrise, setting in the west before noon. It is at the Sun's "winter" location on the ecliptic so never gets very high in the sky.
- Jupiter is quickly getting lost in evening twilight while Venus continues to creep eastward amongst the background of stars, avoiding the Sun. Venus is right
in the middle of Taurus near the Pleiades and Hyades star clusters.
- Mars is prominent rising in the eastern sky in the early evening. Its red color is evident.
- Face Orion in the evening and you will find the stars of Gemini (made evident by the bright pair Castor and Pollux) above Orion.
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Current location of the Wide Field Infrared Survey Explorer (WISE)