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 ?
Taurid meteor shower is visible when the Earth passes every year through the dust and debris left behind by Comet Encke.
Each year in late October or early November, Earth passes through the Taurids, left behind by the comet Encke.
The shower is associated with the comet Encke and is believed to come from the remnants of a much larger comet that broke apart years ago.
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.
amp;nbsp;It occurs annually when the Earth moves through debris from Comet Encke, with the streams being visible every fall.
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.
This yearAaAaAeAeAaAeAeA m a 'swarm' or a rate increase of visible meteors, which are fragments of Comet Encke, a three-mile-wide chunk of ice and rock that circles the sun every 3.
Whatever happened to Comet Encke during its putative breakups in the past 20,000 years, the events left an unusual number of large chunks scattered amid the little debris bits of the kind that make up most meteoroid streams.