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| Redak 25: | Redak 25: | ||
| align="center"|2008. | | align="center"|2008. | ||
| align="center"|14. – 22. studenog | | align="center"|14. – 22. studenog | ||
| 17 studenog <ref name="Meteor">{{ | | 17 studenog <ref name="Meteor">{{Citiranje weba | ||
| title = Return of the Leonids | | title = Return of the Leonids | ||
| publisher =[[NASA]] | | publisher =[[NASA]] | ||
| Redak 35: | Redak 35: | ||
| align="center"|2009. | | align="center"|2009. | ||
| align="center"|10. – 21. studenog | | align="center"|10. – 21. studenog | ||
| 17 studenog <ref name="natgeo">{{ | | 17 studenog <ref name="natgeo">{{Citiranje weba | ||
| url=http://news.nationalgeographic.com/news/2009/11/091116-leonids-meteor-shower-best-2009.html | | url=http://news.nationalgeographic.com/news/2009/11/091116-leonids-meteor-shower-best-2009.html | ||
| title = Leonid Meteor Shower: Best Sky Show Tonight | | title = Leonid Meteor Shower: Best Sky Show Tonight | ||
| author=Fazekas, Andrew | | author=Fazekas, Andrew | ||
| publisher=National Geographic News | | publisher=National Geographic News | ||
| date=November 16, 2009}}</ref><ref name="IMO">{{ | | date=November 16, 2009}}</ref><ref name="IMO">{{Citiranje weba | ||
| title = IMO Meteor Shower Calendar 2009 | | title = IMO Meteor Shower Calendar 2009 | ||
| publisher = The International Meteor Organization | | publisher = The International Meteor Organization | ||
| date = 1997–2009 | | date = 1997–2009 | ||
| url = http://www.imo.net/calendar/2009#leo | | url = http://www.imo.net/calendar/2009#leo | ||
| accessdate =2009-10-21 }}</ref> <ref name="Meteor" /><ref>{{ | | accessdate =2009-10-21 }}</ref> <ref name="Meteor" /><ref>{{Citiranje weba | ||
| title = Strong Leonid Meteor Shower Predicted for 2009 | | title = Strong Leonid Meteor Shower Predicted for 2009 | ||
| publisher = Space.com | | publisher = Space.com | ||
| date = 4 December 2008 | | date = 4 December 2008 | ||
| url = http://www.space.com/scienceastronomy/081204-leonids-meteor-shower-2009.html | | url = http://www.space.com/scienceastronomy/081204-leonids-meteor-shower-2009.html | ||
| accessdate =2009-10-22 }}</ref><ref>{{ | | accessdate =2009-10-22 }}</ref><ref>{{Citiranje weba | ||
|last=Lopez | |last=Lopez | ||
|first=Mike | |first=Mike | ||
| Redak 56: | Redak 56: | ||
| date = December 7, 2008 | | date = December 7, 2008 | ||
| url = http://science.mikelopez.info/2008/12/07/watch-out-for-leonids-2009-meteor-shower/ | | url = http://science.mikelopez.info/2008/12/07/watch-out-for-leonids-2009-meteor-shower/ | ||
| accessdate = 2009-10-22}}</ref> <ref name=IMO2009>{{ | | accessdate = 2009-10-22}}</ref> <ref name=IMO2009>{{Citiranje weba | url=http://www.imo.net/live/leonids2009 | title = Leonids 2009: visual data quicklook | publisher = The International Meteor Organization}}</ref> | ||
| align="center"|79<ref name=IMO2009/> | | align="center"|79<ref name=IMO2009/> | ||
|- | |- | ||
Inačica od 12. studeni 2021. u 02:03
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Leonidi su meteorski roj kojemu je radijant u zviježđu Lavu, pojavljuje se oko 17. studenoga. Ima vrhunac, s posebno mnogo meteora, svake 33 godine, a potječe s putanje dugoperiodičnoga kometa Tempel-Tuttle. Najobilniji je pljusak bio 1833., s približno 35 000 meteora na sat. [1] Leonidi spadaju u najbrže meteorske rojeve, a brzina im se kreće oko 71 km/s. Prividna magnituda ili sjaj im se kreće za čestice veličine 10 mm i do m = -1.5. Godišnje oni mogu izručiti od 12 do 13 tona materijala na Zemlju. Na raspored čestica dosta utječe gravitacijska sila planeta (posebno Jupitera), tlak elektromagnetskog zračenja, Poynting-Robertsonov učinak (John Henry Poynting) i Jarkovskiev učinak. Leonidi su vrlo različiti i može se pojaviti od 5 do 8 meteora na sat (ako se radi o starom tragu kometa), pa i preko tisuću meteora na sat (ako se radi o mladom tragu kometa). Prvi zapisi sežu još iz godine 902. [2] [3] [4]
| Godina | Leonidi vidljivi između | Vrhunac pojave | Meteora na sat najviše |
|---|---|---|---|
| 2006. | 19. studenog | 78[5] | |
| 2007. | 19. studenog | 35[6] | |
| 2008. | 14. – 22. studenog | 17 studenog [7] | 99[8] |
| 2009. | 10. – 21. studenog | 17 studenog [9][10] [7][11][12] [13] | 79[13] |
| 2010. | 10. – 23. studenog | 18. studenog | 32[14] |
| 2011. | 18. studenog | 22[15] | |
| 2012. | 6. – 30. studenog | 20. studenog | 47[16] |
| 2013. | 15. – 20. studenog | 17. studenog | – |
| 2014. | 6. – 30. studenog | 17. studenog | 15? |
Izvori
- ↑ Leonidi, [1] "Hrvatska enciklopedija", Leksikografski zavod Miroslav Krleža, www.enciklopedija.hr, 2014.
- ↑ Space.com The Power of a Shooting Star
- ↑ McNaught Robert H., Robert H. McNaught Asher, David J., David J. Asher: "Leonid Dust Trails and Meteor Storms", WGN, Journal of the International Meteor Organization, 27, 85–102, 1999., [2]
- ↑ • Nedostaje obavezni parametar:
journal
• Parametarurlnije dopušten u klasijournal
• Parametartypenije dopušten u klasijournal
• Parametaraccessdatenije dopušten u klasijournal - ↑ Leonids 2006: Morning of 19 November
- ↑ Leonids 2007: visual data quicklook
- ↑ 7,0 7,1 • Parametar
accessdatenije dopušten u klasiweb - ↑ Leonids 2008: visual data quicklook
- ↑ Leonid Meteor Shower: Best Sky Show Tonight. National Geographic News 0. November 16, 2009 0.
- ↑ • Parametar
accessdatenije dopušten u klasiweb - ↑ • Parametar
accessdatenije dopušten u klasiweb - ↑ • Parametar
accessdatenije dopušten u klasiweb - ↑ 13,0 13,1 Leonids 2009: visual data quicklook. The International Meteor Organization 0.
- ↑ Leonids 2010: visual data quicklook
- ↑ Leonids 2011: visual data quicklook
- ↑ Leonids 2012: visual data quicklook