Aquarids


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Aquarids:

see meteor showermeteor shower,
increase in the number of meteors observed in a particular part of the sky. The trails of the meteors of a meteor shower all appear to be traceable back to a single point in the sky, known as the radiant point, or radiant.
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Aquarids

(ak -wă-ridz) Either of two active meteor showers: the Eta Aquarids, radiant: RA 336°, dec 0°, maximize on May 6, having a peak duration of 10 days and a zenithal hourly rate (ZHR) of 45; the Delta Aquarids, double radiant: RA 340°, dec –17° and 0°, maximize on July 28 and Aug. 7, have a peak duration of about 20 days, and a ZHR of about 19 and 10. The Eta Aquarids have an orbit that is closely aligned to that of Halley's comet. They are observed near the descending node of the comet's orbit.

Aquarids

 

meteor showers whose radiants are located in the Big Dipper. The most important aquarids are the Eta Aquarids (visible every year at the end of April and beginning of May), which are connected with Halley’s Comet, and the Delta Aquarids (visible every year at the end of July and beginning of August).

References in periodicals archive ?
In an online article, the US National Aeronautics and Space Administration (Nasa) said the Delta Aquarids were best viewed in the southern hemisphere and the southern latitudes of the northern hemisphere.
Experts say this is a very good year to look out for the Eta Aquarid meteors because the moon will be at a thin, waning crescent phase, and just 20-percent illuminated and providing little interference for viewing these swift streaks of light.
Almanac d h Event 01 01:00 Moon near Regulus (5.7[degrees]N) 04 19:26 Moon near Spica (1.5[degrees]N) 04 20:08 Eta Aquarid Shower (ZHR = 60) 06 05:33 Moon at perigee (357 000 km) 06 05:35 Full Moon (diameter 33.7') 07 11:43 Moon at ascending node 07 19:00 Moon near Antares (5.0[degrees]S) 08 08:18 Moon max.
Eta Aquarids are known for their speed and will be traveling at about 148,000 mph while entering Earth's atmosphere.
According to space.com, the Eta Aquarids do not produce as many meteors per hour as the more famous Perseid meteor shower in August, but they are just as bright, if not brighter.
In an online article, the US National Aeronautics and Space Administration said the Delta Aquarids are best viewed in the southern hemisphere and the southern latitudes of the northern hemisphere.
Several minor, long-lasting meteor showers with radiants in the southern sky are active during July, including the Alpha Capricornids, Piscis Austrinids, and Northern and Southern Delta Aquarids. All are weak, but together they increase the chance that a meteor you see late on a July night will be coming out of the south.
(2) He published numerous accounts of his meteor work in the English Mechanic, including a thorough analysis of his observations of the 1907 Aquarids. (97) He reported on 3 fireballs 'brighter than Venus' that were seen in the skies over Belgium in 1908 May.
of Showers Observed and duration Total Time showers observed hrs Tim Cooper (2) Pi Puppids (1.0), eta Aquarids (8.5) 9.5 Dudley Field (3) Alpha Crucids (2.1), Pi Puppids 7.6 (3.1), alpha Capricornids (2.4) Koos van Zyl (1) Alpha Crucids (6.3) 6.3 Karen Koch (2) Alpha Crucids (2.3), Alpha 5.3 Centaurids (3.0) Magda Streicher (1) Eta Aquarids (2.2) 2.2 Kos Coronaios (1) Alpha Centaurids (0.5) 0.5 Total 31.4 Table 2.
But the small green fireballs were actually part of the Delta Aquarids meteor shower, usually visible from mid-July to midAugust.