Orionids
Sign in to saveThe Orionids meteor shower, often shortened to the Orionids, is one of two meteor showers associated with Halley's Comet (the other one being the Eta Aquariids). The Orionids are named because the point they appear to come from (the radiant) lies in the constellation of Orion. The shower occurs annually, lasting approximately one week in late October. In some years, meteors may occur at rates of 50–70 per hour.
Key facts
- Meteor shower.name
- Orionids (ORI)
- Meteor shower.image
- File:Orioniden.png
- Meteor shower.caption
- The radiant of the Orionids is located about 10 degrees northwest of Betelgeuse
- Meteor shower.date
- October 1839
- Meteor shower.parent
- 1P/Halley
- Meteor shower.constellation
- Orion (10 degrees northeast of Betelgeuse)
- Meteor shower.peak
- October 21
- Meteor shower.velocity
- 66.9
- Meteor shower.zhr
- 20
via Wikipedia infobox
Wikidata facts
- Image
- Multi colored Orionid.jpg
- Speed
- 66
Show 3 more facts
- declination
- 15
- Commons category
- Orionids
- time of discovery or invention
- 1839-10-00
via Wikidata · CC0
~5 min read
Article
5 sectionsContents
- History
- Gallery
- See also
- References
- External links
The Orionids meteor shower, often shortened to the Orionids, is one of two meteor showers associated with Halley's Comet (the other one being the Eta Aquariids). The Orionids are named because the point they appear to come from (the radiant) lies in the constellation of Orion. The shower occurs annually, lasting approximately one week in late October. In some years, meteors may occur at rates of 50–70 per hour.
Orionid outbursts occurred in 585, 930, 1436, 1439, 1465, and 1623. The Orionids occur at the ascending node of Halley's comet. The ascending node reached its closest distance to Earth around 800 BCE. Currently Earth approaches Halley's orbit at a distance of during the Orionids. The next outburst might be in 2070 as a result of particles trapped in a 2:13 mean-motion resonance with Jupiter.