Open Directory - Science: Astronomy: Solar System: Small Bodies: Comets
See also: This category in other languages: - Extensive coverage of the event July 1994. Includes observations, reports, 1444 images, news releases and links. - News, recent observations, observing information and advice. - Comet data archive for amateur astronomers. Includes observation logs and discussions. In English and Italian. - A list of comets discovered by Canadian astronomers. - Downloadable catalog. Also news, reading list, articles, links. - From the Smithsonian Astrophysical Observatory. News, observations, orbital data, comet names and designations, links. - Catalogue of images, ordered by comet. - News, observations, analyses of current comets, images, archives, links. - Overview provided by David Jewitt, an astronomer at UCLA. - History, orbits, composition, ways comets are studied, relation to meteor showers. Comets Halley, Shoemaker-Levy 9. From the National Air and Space Museum. - Glossary of comet (and astronomical) terms. - Informative illustrated explanation of what comets are, what they are made of, where they come from and how to observe them. - Offers updated orbital data, lists and orbit diagrams. Includes near Earth objects and minor planets. - Orbit computations for selected comets. - Movies of comets from the Solar and Heliospheric Observatory. Also, background, archives, and how to interpret images and report new discoveries. - The original discovery and latest news about a new class of interplanetary bodies. - Article by William Newcott republished from the National Geographic magazine. - Updated news letter on observation opportunities, designation of names and discoveries. Includes observation data and links. - Basic features, data, discoveries, images and sections with specific information on selected comets. - Encyclopedia entry covers physical characteristics, history. List of well-known comets. - General information and data, pictures, details on the most interesting ones. - The solar polar orbit satellite observed tail of comet Hyakutake by means of magnetic fields and particle count anomalies. Article from Science News. (April 08, 2000)
