Interesting Sites on the Web

• Chaisson's Textbooks on Astronomy These are hypertext books at the introductory level and they cover a lot of the material we will cover in class. Highly recommended.
• Nick Strobel's Astronomy pageAn excellent introduction to astronomy. Highly recommended. The newest version has a  Javascript interface, so select "Textbook" and be warned that your "Back" button may not get you out of this site after you've entered the site.

• Skymaps.com Evening sky maps for each month of the year. Not as flexible as the next link, but a quick and easy way to see what's up.
• Sky Charts from YourSky Make a star chart by choosing the date of interest and the direction in the sky. Shows planetary positions, constellations, and nebulae. There are also links to a freeware (!) planetarium program for Windows, Homeplanet that I haven't tried yet, but looks very interesting.
• Planisphere A downloadable planisphere(PDF format). This requires access to a Xerox machine after you've gotten the templates.
• Sky Watchers PageInformation and useful links.

• Sky and Telescope MagazineOne of the oldest (and best) amateur astronomy magazines in the world. Oriented to the amateur astronomer who is interested in theory and observation, it contains astronomy news, articles, essays, monthly star maps, planetary positions, telescope making hints, and just about anything else of interest.

Current Solar Imagesdaily images of the Sun and corona at various wavelengths (including X-ray images).

• STScI/HubbleThe Hubble Space Telescope site with many photos. Amazing stuff.
• W. M. Keck Observatory The largest fully mobile optical telescope in the world, now twinned, on top of Mauna Kea in Hawaii.