Halley's comet

(redirected from Comet Halley)
Also found in: Encyclopedia.
Related to Comet Halley: Comet Hale-Bopp, Comet Kohoutek

Hal·ley's comet

 (hăl′ēz, hā′lēz)
n.
A comet with a period of approximately 76 years. The first comet for which a return to the inner solar system was accurately predicted, it last appeared in 1986.

[After Edmund Halley.]

Halley's Comet

(ˈhælɪz)
n
(Astronomy) a comet revolving around the sun in a period of about 76 years, last seen in 1985–86

Hal′ley's com′et

(ˈhæl iz or, often, ˈheɪ liz)
n.
a comet with a period averaging 76 years: most recently visible in 1986.
[after Edmund Halley, who first predicted its return]
pron: The common pronunciation for both the comet and the astronomer Edmund Halley, and the one usu. recommended by astronomers, is (ˈhæl i) However, several spellings of the name, including Hailey and Hawley, were in use during the astronomer's own time, when spellings were not yet fixed, and corresponding pronunciations have survived. The pronunciation (ˈheɪ li) in particular remains associated with Halley's comet; it is less likely to be heard as a pronunciation of Edmund Halley.

Hal·ley's comet

(hăl′ēz, hā′lēz)
A comet that makes one complete orbit around the sun in approximately 76 years. It is visible to the unaided eye and last appeared in 1986.

Halley's comet

A comet that orbits the Sun about every 76 years. It was first recorded in 240 BC, was last seen in 1986, and is next due in 2061.
References in periodicals archive ?
For the shower in AD 531, Kinsman and Asher showed that the intensity of this burst resulted from Earth encountering particles released by Comet Halley during three previous passages (AD 295, 374, and 451).
Lasting from October 2 until November 7, the Orionids is the second shower caused by Comet Halley.
Producing up to 20 meteors per hour radiating from the constellation Orion, the Orionids is produced by dust grains left behind by Halley's comet Halley, observed since ancient times.
What makes this shower somewhat special is that the meteors stem from the most famous comet in all of history, Comet Halley.
The eta Aquariids are the outbound remnants of comet Halley after perihelion in their orbit.
Around that time, he said, the Comet Halley was visible from Earth and was probably connected to Jesus.
About how many more years does Comet Halley spend in one orbit compared with Comet Tempel-Tuttle?
The only other probe that's photographed a comet's nucleus is the European Space Agency's probe Giotto, which encountered Comet Halley in 1986.
The images are even better than the impressive images of comet Halley taken by Europe's Giotto spacecraft in 1986.
I felt cheated by the Comet Kohoutek fizzle in 1973, slept through Comet West in 1976 and was sorely disappointed by the fuzz ball that was Comet Halley in 1986.
The comet has ever since been known as Halley's comet, or in line with the conventions of the present day, Comet Halley.