Comets

Comets

A comet is a solid body orbiting the sun typically composed of rock, dust, or ice.

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Comets

Halley's comet

Astronomy; Comets

A comet that is very bright and that takes 76 years to make one complete orbit around the Sun.

Halley

Astronomy; Comets

English astronomer best known for his study of comets. He figured out the orbit of a comet that had appeared in 1531, 1607, and 1682.

Halley Comet

Astronomy; Comets

Halley’s Comet is the most famous of the short-period comets (with an orbit lasting 200 years or less) and it is also the only one of this type which is visible from Earth by naked eye. Halley’s ...

Harrington–Abell (comet)

Astronomy; Comets

Harrington–Abell is a periodic comet in our solar system. It was discovered by Robert G. Harrington and George O. Abell in 1955 on plates from the Palomar Sky Survey taken with the 49-inch Samuel ...

Arend–Rigaux is a periodic comet in our solar system. The comet nucleus is estimated to be 8.48 kilometers in diameter with a low albedo of 0.028. On 20 December 2058 the comet will pass 0.0867 AU ...

Johnson (comet)

Astronomy; Comets

Johnson is a periodic comet in our solar system. The comet nucleus is estimated to be 5.7 kilometers in diameter by Lamy, Fernandez, and Weaver. David C. Jewitt and Scott S. Sheppard estimate the ...