Orionids

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Orionids

(or-ÿ -ŏ-nidz, oh-rÿ ) An active meteor shower, radiant: RA 97°, dec +15°, that maximizes on Oct. 22 with a zenithal hourly rate of about 25. The activity has been observed to change by as much as a factor of four between one year and the next. The shower has been the center of controversy firstly because it was thought that the radiant was stationary during the three weeks of activity. This view has now been abandoned: all showers have radiants that move with respect to the stars as the Earth moves along its orbit. Secondly the shower is associated both with Halley's comet and the Eta Aquarids because of similarities in orbital elements.

Orionids

 

a meteor shower with its radiant in the constellation Orion. Linked with Halley’s comet, the Orionids are active every year in the second half of October. The Eta Aquarid meteor shower is also linked with Halley’s comet. The Eta Aqua-rids are active from the end of April to the beginning of May.

Orionids

[ə′rī·ə‚nidz]
(astronomy)
A meteor shower seen in October in the northern hemisphere; its radiant lies in the constellation Orion.
References in periodicals archive ?
The sighting comes as astronomers prepare for the Orionid meteor shower.
As Earth approaches the debris field left behind by Halley's Comet from its last visit to the inner solar system in 1986 - a transit that produces the annual Orionid meteor shower, which will peak in the early hours of Oct.
20-22 Morning: The modest Orionid meteor shower is active before dawn's first light; see page 50.
November 11 - Taurid Meteor Shower Like last month's Orionid meteor shower, you'll be able to catch the peak of the Taurid Meteor Shower this Friday.
THIS weekend you have the chance to see one of nature's own firework displays - the Orionid meteor shower.
The Orionid meteor shower is described as one of the night sky's most spectacular sights.
The Orionid meteor shower, fed by debris from Halley's Comet, usually peaks on the morning of October 21.
The other point occurs in mid-October, producing the Orionid meteor shower.
Wednesday's light streak comes as astronomers expect a more dramatic light display this weekend that is part of the large, fast Orionid meteor shower, so-named because it has the Orion constellation as a backdrop.
20-21 THE ORIONID METEOR SHOWER, normally modest, is best this night from midnight to dawn.
It was part of the Orionid meteor shower, so called because the point where they come from, the radiant, lies in the constellation Orion, that great feature of the sky known as "the hunter" and whose familiar, triple starred "belt of Orion" hangs over us at night.
Visitors will be on the look-out for shooting stars from the Orionid meteor shower - debris from STAR STRUCK Stargazers will be holding a public viewing event at Kielder Forest on October 22 Halley's Comet burning up in the atmosphere which will peak the night before the event.