Encke's comet

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Encke's comet

(enk -kĕz) The most observed comet, having been seen at 55 apparitions. The comet has a period of 3.30 years – one of the shortest – and is thought to be the parent body of the Taurid meteoroid stream. The period of Encke is decreasing by up to 2.7 hours per orbital revolution. This is caused by a jet effect from its rotating nucleus, which is not thermally symmetrical. The brightness of Encke has hardly decreased during the 165 years of observation. Since the orbit of Encke is extremely well known and a considerable bank of scientific data has been established, Encke is one of the prime targets for a spacecraft investigation of a comet.

Encke's Comet

[′eŋ·kəz ′käm·ət]
(astronomy)
A very faint comet with the shortest period of any known comet, 3.3 years.
References in periodicals archive ?
Comet Encke has left several debris fields in the inner solar system, giving rise to the Southern and Northern Taurids, meteor showers that peak in October and November, and the Beta Taurids in June and July.
The planet is under steady siege from interplanetary dust and then regularly passes through this other dust storm, which we think is from comet Encke.
WASHINGTON (CyHAN)- This movie from the spacecraft's Heliospheric Imager shows Comet ISON, Mercury, Comet Encke andEarth over a five-day period from Nov.
He also viewed Comet Encke using a completed 175mm mirror and portable equatorial mounting.
The maneuver was intended to place CONTOUR on a path toward its first target, Comet Encke (SN: 8/3/02, p.
COMET ISON: This movie from the spacecraft's Heliospheric Imager shows Comet ISON, Mercury, Comet Encke andEarth over a five-day period from Nov.
The craft is set to fly within 100 kilometers of its first target, Comet Encke, on Nov.
MARYLAND (CyHAN)- This movie from the spacecraft's Heliospheric Imager shows Comet ISON, Mercury, Comet Encke andEarth over a five-day period from Nov.