Arietids

Annual meteor shower in May and June

Arietids

Appearance of the eastern sky at 5:00 am on June 7, 2000 from a mid-northern latitude observing site.

Discovery date| 1947[1]
Radiant
Constellation| Aries
Right ascension| 03h 02m [2]
Declination| +25°
Properties
Occurs during| May 22 – June 24[2]
Date of peak| June 7–8
Velocity| 39–41[3][2] km/s
Zenithal hourly rate| 60 (radar)[1]
~1 (visual)
See also: List of meteor showers

The Arietids are a strong meteor shower that lasts from May 22 to July 2 each year, and peaks on June 7. The Arietids, along with the Zeta Perseids, are the most intense daylight meteor showers of the year.[3] The source of the shower is unknown, but scientists suspect that they come from the asteroid 1566 Icarus,[3][4] although the orbit also corresponds similarly to 96P/Machholz.[5]

First discovered at Jodrell Bank Observatory in England during the summer of 1947, the showers are caused when the Earth passes through a dense portion of two interplanetary meteoroid streams, producing an average of 60 shooting stars each hour, that originate in the sky from the constellation Aries and the constellation Perseus.[1] However, because both constellations are so close to the Sun when these showers reach their peak, the showers are difficult to view with the naked eye.[3] Some of the early meteors are visible in the very early hours of the morning, usually an hour before dawn.[6] The meteors strike Earth's atmosphere at speeds around 39 km/s.[3]

Radiant migration 2019  Date  | Radiant | Degrees west
of the Sun

|
|

May 18 | 01:48 (027) +21[7] | 26 (HD 10883)
May 25 | 02:14 (034) +22
western Aries[8] | 26 (HD 13572)
June 1 | 02:36 (039) +23
central Aries[9] | 27 (HD 16198)
June 8 | 03:02 (046) +25
eastern Aries[2] | 28 (HD 18737)
June 15 | 03:24 (051) +26[10] | 30 (60 Arietis)
June 22 | 03:51 (058) +27
western Taurus[11] | 30 (HD 283022)

By June 22 the radiant has migrated to the constellation Taurus (3h 51m +27) which is the same constellation that the Beta Taurids peak on June 28.[11]

## References

[edit]

1. ^ a b c Gary Kronk. "Arietids". Meteor Showers Online. Archived from the original on October 25, 2007. Retrieved September 7, 2007.
2. ^ a b c d Meteor Activity Outlook for June 8-14, 2019
3. ^ a b c d e Tony Phillips (2000). "June's Invisible Meteors". NASA. Archived from the original on November 2, 2007. Retrieved September 7, 2007.
4. ^ "Daylight Meteors: The Arietids". spaceweather.com. Archived from the original on 27 September 2007. Retrieved September 7, 2007.
5. ^ Ohtsuka, Katsuhito; Nakano, Syuichi; Yoshikawa, Makoto (2003). "On the Association among Periodic Comet 96P/Machholz, Arietids, the Marsden Comet Group, and the Kracht Comet Group". Publications of the Astronomical Society of Japan. 55 (1): 321–324\. doi:10.1093/pasj/55.1.321.
6. ^ James Turley (1999). "Listen...to the Arietids!!". The Astronomy Connection. Archived from the original on September 29, 2007. Retrieved September 7, 2007.
7. ^ Meteor Activity Outlook for May 18-24, 2019
8. ^ Meteor Activity Outlook for May 25-31, 2019
9. ^ Meteor Activity Outlook for June 1-7, 2019
10. ^ Meteor Activity Outlook for June 15-21, 2019
11. ^ a b Meteor Activity Outlook for June 22-28, 2019

## External links

[edit]

* Arietids vs Perseids (2022) (radio)

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Meteor showers

By name|

* Andromedids
* Antihelion Source
* Aquariids
* eta Aquariids
* kappa Aquariids
* North delta Aquariids
* North iota Aquariids
* South iota Aquariids
* Southern Delta Aquariids
* tau Aquariids
* Aquilids
* South June Aquilids
* Arietids
* Daytime eps. Arietids
* Daytime May Arietids
* Aurigids
* alpha Aurigids
* delta Aurigids
* Nov. iota Aurigids
* Bootids (June Bootids)
* Canis-Minorids
* Cancrids (delta Cancrids)
* Capricornids
* alpha Capricornids
* Daytime Capri.-Sagitt.
* Carinids (eta Carinids)
* Cassiopeids (beta Cassiopeids)
* Centaurids
* alpha Centaurids
* theta Centaurids
* omicron Centaurids
* Cetids
* omega Cetids
* pi Cetids
* Comae Berenicids
* Cygnids (kappa Cygnids)
* Doradids (gamma Doradids)
* Draconids
* Eridanids (eta Eridanids)
* Geminids (epsilon Geminids)
* Herculids (tau Herculids)
* Hydrids (sigma Hydrids)
* Leonids
* Leonis Minorids (Dec. Leonis Minorids)
* Lyrids
* eta Lyrids
* June Lyrids
* Monocerotids
* alpha Monocerotids
* Normids (gamma Normids)
* Orionids
* Pegasids
* Perseids
* Daytime zeta Perseids
* September epsilon Perseids
* Phoenicids (July Phoenicids)
* Piscis Austrinids
* Puppids (pi Puppids)
* Puppid-Velids
* Quadrantids
* Scorpiids
* alpha Scorpiids
* North omega Scorpiids
* South omega Scorpiids
* Serpentids (kappa Serpentids)
* Sextantids (Daytime Sextantids)
* Taurids
* Daytime beta Taurids
* Northern Taurids
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By peak date|

* January 4
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* May 6
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* July 30
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* December 15
* December 22

Related topics|

* American Meteor Society
* Earth-grazing fireball
* International Meteor Organization
* Meteor procession
* North American Meteor Network
* Population index
* Radiant
* Zenithal Hourly Rate

See also
List of meteor showers
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