Comets are like asteroids, but when they are near the sun they release dust or gas. This gives them a tail or makes them look fuzzy.
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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.
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.
The solar polar orbit satellite observed tail of comet Hyakutake by means of magnetic fields and particle count anomalies. Article from Science News.
Overview provided by David Jewitt, an astronomer at UCLA.
Glossary of comet (and astronomical) terms.
Offers updated orbital data, lists and orbit diagrams. Includes near Earth objects and minor planets.
Orbit computations for selected comets.
The original discovery and latest news about a new class of interplanetary bodies.
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.
Extensive coverage of the event July 1994. Includes observations, reports, 1444 images, news releases and links.
The solar polar orbit satellite observed tail of comet Hyakutake by means of magnetic fields and particle count anomalies. Article from Science News.
From the Smithsonian Astrophysical Observatory. News, observations, orbital data, comet names and designations, links.
News, observations, analyses of current comets, images, archives, links.
Glossary of comet (and astronomical) terms.
Offers updated orbital data, lists and orbit diagrams. Includes near Earth objects and minor planets.
General information and data, pictures, details on the most interesting ones.
Comet data archive for amateur astronomers. Includes observation logs and discussions. In English and Italian.
Overview provided by David Jewitt, an astronomer at UCLA.
Catalogue of images, ordered by comet.
Encyclopedia entry covers physical characteristics, history. List of well-known comets.
Orbit computations for selected comets.
Downloadable catalog. Also news, reading list, articles, links.
Basic features, data, discoveries, images and sections with specific information on selected comets.
News, recent observations, observing information and advice.
The original discovery and latest news about a new class of interplanetary bodies.

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February 16, 2020 at 18:36:35 UTC
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