Comet

Cosma / Communication / Knowledge / Realm / Physical / Universe / Solar System / Small Body / Comet

—————————

Introduction1

Astronomic (YouTube Channel)

Dictionary

comet : a celestial body that appears as a fuzzy head usually surrounding a bright nucleus, that has a usually highly eccentric orbit, that consists primarily of ice and dust, and that often develops one or more long tails when near the sun — Webster   See also   OneLook

Encyclopedia

Comet is a icy small Solar System body that, when passing close to the Sun, warms and begins to evolve gasses, a process called outgassing. This produces a visible atmosphere or coma, and sometimes also a tail. These phenomena are due to the effects of solar radiation and the solar wind acting upon the nucleus of the comet. Comet nuclei range from a few hundred metres to tens of kilometres across and are composed of loose collections of ice, dust, and small rocky particles. The coma may be up to 15 times the Earth’s diameter, while the tail may stretch one astronomical unit. If sufficiently bright, a comet may be seen from the Earth without the aid of a telescope and may subtend an arc of 30° (60 Moons) across the sky. Comets have been observed and recorded since ancient times by many cultures. — Wikipedia

Comet (Encyclopædia Britannica)

Comets (Eric Weisstein’s World of Astronomy, Wolfram Research)

Search

Comets (Wolfram Alpha)

———————-

Innovation

Science

Solar System Exploration: Comets (Jet Propulsion Laboratory, NASA)
Comet Research (NASA)

SciShow Space (YouTube Playlists)

Deep Impact/EPOXI (NASA)
Deep Impact Mission Page (NASA)
EPOXI Mission Page (NASA)
Deep Impact (Wikipedia)

SciShow Space (YouTube Playlist)

Giotto Comet Mission (ESA)
Giotto Spacecraft (Wikipedia)

Commerce

Entrepreneurship

Comets Campaigns (Kickstarter)
Comets Campaigns (Indiegogo)

Product

Comet Gifts (Zazzle)

————————–

Preservation

History

Comet History (Encyclopædia Britannica)

Objectivity (YouTube Playlist)
The Royal Society (Official Site)

Library

Library of Congress # QB717 Comets (UPenn Online Books)

WorldCat, Library of Congress, UPenn Online Books, Open Library

—————————

Participation

Education

More to Explore: Comets (NASA)
Comets (Cosmos4Kids)

MERLOT: Multimedia Educational Resource for Learning and Online Teaching
OER Commons: Open Educational Resources

Course

Crash Course Astronomy (YouTube Playlist)

Community

Organization

Minor Planet Center (International Astronomical Union)

News

Comet (Minor Planet Center, International Astronomical Union)
Comet (Astronomy Magazine)

Comet (Phys.org)
Comet (NPR Archives)

Book

Comet (ISBNdb)

Government

Document

Comet (USA.gov)

———————-

Expression

Fun

Comets (Tim Hunkin, The Rudiments of Wisdom Encyclopedia)

Poem

OEDILF: The Omnificent English Dictionary In Limerick Form

returntotop

——–
Related

Here are links to pages about closely related subjects.

Knowledge Realm

Physical

“Fundamentals”
Law (Constant) Relativity
Force Gravity, Electromagnetism (Light, Color)
Matter (Microscope) Molecule, Atom (Periodic Table), Particle

“Space”
Universe (Astronomical Instrument)
Galaxy Milky Way, Andromeda
Planetary System Star, Brown Dwarf, Planet, Moon

Our Neighborhood
Solar System Sun
Terrestrial Planet Mercury, Venus, Earth (Moon), Mars
Asteroid Belt Ceres, Vesta
Jovian Planet Jupiter, Saturn, Uranus, Neptune
Trans-Neptunian Object
Kuiper Belt Pluto, Haumea, Makemake
Scattered Disc Eris, Sedna, Planet X
Oort Cloud Etc. Scholz’s Star
Small Body Comet, Centaur, Asteroid

——
Notes

1.   The resources on this page are are organized by a classification scheme developed exclusively for Cosma.