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Astronomy -- Handbooks, manuals, etc.

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View Resource YourSky

One of many educational pages devised by entrepreneur and programmer John Walker, YourSky is a virtual planetarium. Visitors to the site can use the Sky Map to produce astronomical maps by entering time and date, viewpoint, and observing location (latitude/longitude and ascension/declination). The Virtual Telescope helps you to track comets and asteroids, and Horizon Views returns views of the...

http://www.fourmilab.ch/yoursky/
View Resource The Old Farmer's Almanac

With the advent and proliferation of the Internet and Web access, a multitude of information has become immediately accessible to anyone with a computer and a phone line. Providing home-spun wisdom and advice has been a hallmark of The Old Farmers Almanac since 1792, and their site features quite a bit of free information that will be useful to new visitors and familiar to long-time fans of the...

https://www.almanac.com/
View Resource Absolutely Astronomy

The earth's diameter is 12,756.3 km and its revolution period is 1 year. You probably knew the last fact, but most likely not the first. The Web site Absolutely Astronomy can provide this and a large amount of other facts about planets, moons, stars, constellations, messier objects, nebulas, and galaxies. Visitors can browse via the pull-down menus or search by a particular question. The basic...

http://www.absoluteastronomy.com/
View Resource Astronomical Almanac Online

The Astronomical Almanac Online is a collaboration between the Nautical Almanac Office in the United States and Her Majesty's Nautical Almanac Office (HMNAO) in the United Kingdom. The print version of the Almanac serves as a worldwide standard for annual data on the Sun, Moon, planets, satellites, eclipses and other phenomena. The online version expands upon the print version by providing data...

http://asa.usno.navy.mil/