Astronomy 103, Fall 2009

These are introductory courses to astronomy, with more emphasis on active thinking than memorizing facts. The main points of this course are (1) a general understanding of astronomy, (2) what can be observed in the sky, (3) the Solar System.

ANNOUNCEMENTS

All grades are up to date as of Nov. 12.

For each class and test students need a new scantron # 16485.


What's up in the sky?

 
The Sun.
We are close to sunspot minimum, only few and very small spots are visible.

New Moon: Nov. 16, First Quarter: Nov. 24,

Full Moon: Dec. 2, Last Quarter: Dec. 8.

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Jupiter is visible early night.

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News

1. Water ice has been found on the Moon, buried underground in the bottom of a crater at the Moon's pole where the Sun never shines.

2. By incredible chance, for the second time in 15 years, another comet or asteroid hits Jupiter.

3. The Hubble Space Telescope has been serviced successfully.

4. The Messenger spacecraft is surveying Mercury - at least in detail.

5. The Cassini spacecraft has taken some really stunning images of Enceladus, a moon of Saturn's.

Three dynamic images - really amazing!

6. The Crab Nebula's pulsar in action in a movie - it is really moving!

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Unusual events and objects

(Students might want to ask help in how to use the coordinates, ephemerids and finder charts.)