Chabot College

Astronomy Courses

Scott Hildreth


Extra Credit Problems and Activities


These can be turned in anytime, and each is worth up to 25 points or more for good work; point values are usually decided upon AFTER seeing your work; lots of effort typically translates into more credit. Check the homework assignments as well for additional extra credit opportunities.

i. Observational Activity for the Moon
Watch the moon over a month, sketching its position in the sky, its phase, and orientation in the sky. Because the Moon's rising and setting times vary, you will need to go out in the evening for at least 2 weeks while the Moon progresses from waxing crescent through full phases. After the Moon has passed the full phase, you might find sketching it in the morning sky will be easier, and once it passes the third quarter phase, morning observation will be required. Include at least 10 different observations taken over the 29 day cycle. Note the times of your observations, and any other interesting factors.

ii. Observe Jupiter & its Moons over two weeks
If you have a small telescope, or strong binoculars, observe Jupiter at least five nights, and record the positions of its 4 largest "Galilean" moons. Make a sketch each night indicating where the moons are located near the planet.

iii. Start a Sun Journal

Record where the sun rises (or sets, if you aren't a "morning person"!) and the time. You will need a clear view of the horizon to observe the sun's rising or setting position. Make a sketch, and annotate it with the Sun's changing position every week or so. This project will take you 1-2 months, and you should observe the Sun at least 2 times/week.

iv. History & Mythology Paper
After reading about constellations and the early history of astronomy, go to Chabot's library or a local library, and research how a particular culture you are interested in, or are part of, used astronomy. Develop a short paper, perhaps 1-2 pages, on what you learned from the reference. Remember to include all appropriate citations! Look at the reference lists at the end of each chapter of the text. You might also look for back issues of Astronomy magazine, Scientific American, National Geographic, or look for books on the history of Astronomy. See me if you would like suggestions of other good books.

v. Are you interested in literature? Poetry? Music? Business? Make a comprehensive list of all the astronomical references you can find in your favorite subject. For example, find poems that mention the heavens, sun, moon, stars; they do not have to specifically about astronomy, like Whitman's "When I Heard the Learned Astronomer" but just have to have an astronomical theme woven into their subject. For music, find astronomical references in lyrics or song titles; if you find an appropriate song, write down the lyric with the reference. For commerce, find product names that are astronomically oriented, like "Mars Candy" or "Ford Taurus." Include all appropriate citations for whatever research you do.

Why do you think astronomy is used as much as it is? Along with your poems, music, or other sources that involve astronomical themes, include a 2-3 paragraph essay on why you think astronomy is incorporated into these forms of expression.

vi. If you are interested in history, consider researching what was going on in the societies of Aristotle, Pythagoras, Al Sufi (Arabic astronomer of c960 AD, Copernicus, Brahe, Kepler, Galileo, or Newton. Who had access to learning? How did that society value science? How do you think the society would have reacted to their work? A 1-2 page review article, with 1-2 references, will be worth as much as one homework assignment. Include appropriate citations!

vii. Also in the library are a number of computers that are networked to the World Wide Web; using Netscape, search the web and visit the home pages of the Space Telescope Science Institute (STScI), and the Jet Propulsion Laboratory. Browse the pictures you find that have to do with our solar system. Write down the identification number/name of the pictures you find, and tell me which you liked and why. If you can, analyze the pictures to find features you know or are curious about! Good luck!


Back to Chabot College's Home Page

Questions/Comments? email me!