Astronomy 1210 -- March 26, 2012 (25)
Important Topics from Last Time
- Not to be missed... The Moon can be used to point your way to Venus in the daytime sky today.
- Definitely a Lab night tonight...
- Exam 3 review questions are available
- The "constellation of the week" is Auriga - see also
Today's Key Topics
- Earth-sized vs. earth-like planets
- Direct detection of other planets
- Searching for other Earths
- The Moon as a prototypical Solar System object
- Lunar maria vs. highlands
- The history of the lunar surface
- The rate of bombardment over time
- Planetary cratering
- Today: Cosmic PerspectiveSections 9.1-9.3
- The Moon has passed Jupiter and Venus and is not much further along the ecliptic. Its separation from these planets will increase as it heads toward first quarter.
- 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.
- 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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Current location of the Wide Field Infrared Survey Explorer (WISE)