Brandt, John C. Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado.
Last reviewed:February 2019
Show previous versions
- 1986 apparition
- 1991 outburst
- Associated meteors
- Links to Primary Literature
- Additional Readings
The most famous of comets, associated with many important events in history. A comet is a small body, consisting of rock and ice, whose orbit takes it near enough to the Sun that its ice begins to sublimate, oftentimes generating a bright atmosphere (called a coma) and a long tail. Comets can be naked-eye objects in Earth's sky, and over human history have been assigned various supernatural interpretations and salience. Because of Halley Comet's long-recorded history, as well as being the first to have its return predicted by its namesake, English mathematician, physicist, and astronomer Edmond Halley in 1705, the comet is arguably the best-known of all comets (Fig. 1). See also: Astronomy; Archeoastronomy; Comet; Earth; Solar system; Sun
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 9000 highly qualified scientists and 43 Nobel Prize winners.
MORE THAN 8700 articles covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information