255P/Levy (original) (raw)
La comète Levy, officiellement 255P/Levy, est une comète périodique du système solaire, découverte le 2 octobre 2006 par David H. Levy.
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| dbo:abstract | 255P/Levy, formerly P/2006 T1 and P/2011 Y1, is a periodic comet with an orbital period of 5.25 years. It last came to perihelion (closest approach to the Sun) on 14 January 2012. During the 2006 passage the comet achieved an apparent magnitude of ~9.5. Levy (PK06T010) was believed to have been recovered on 3 June 2011 at magnitude 19.8, but other observatories were unable to confirm a recovery. It was most likely a false positive because of large residuals. Levy was recovered on 17 December 2011 at magnitude 19.8, and given the second designation 2011 Y1. It was then numbered. It came to perihelion on 14 January 2012 at a distance of 1.007 AU from the Sun. The comet passed the Earth on 2012-Jan-26 at a distance of 0.2359 AU (35,290,000 km; 21,930,000 mi). During the 2012 passage the comet was originally expected to reach an apparent magnitude of 7, but the comet had been in outburst in 2006 and was much dimmer than expected when it was recovered in 2011. MPC estimates after the 2011 recovery estimated that it would reach a magnitude of 17, and it had an elongation of 90°. However, CCD images showed it was diffuse and the comet's magnitude was estimated at 14.1 on 30 December 2011. The comet was not observed during the 2017 perihelion passage. At opposition in August 2016 it would have been dimmer than magnitude 19. 255P/Levy currently has an Earth-MOID of 0.025 AU (3,700,000 km; 2,300,000 mi). (en) La comète Levy, officiellement 255P/Levy, est une comète périodique du système solaire, découverte le 2 octobre 2006 par David H. Levy. (fr) La Cometa Levy 2, formalmente 255P/Levy, è una cometa periodica del Sistema solare, appartenente alla famiglia delle comete gioviane e scoperta il 2 ottobre 2006 da David Levy, come un oggetto di magnitudine 10,5. Poiché le ricerche di immagini di pre-scoperta hanno dato esito negativo nonostante le effemeridi indicassero che la cometa sarebbe potuta essere ripresa facilmente anche nelle settimane precedenti il 2 ottobre, si ritiene che la scoperta sia stata resa possibile dal verificarsi di una fase espansiva della chioma, denominata abitualmente outburst, nei giorni subito precedenti. La cometa è stata riscoperta il 17 dicembre 2011. La minima distanza tra l'orbita della cometa e l'orbita della Terra (MOID) è di 0,024 UA. La cometa P/2006 T1 è quindi classificabile anche come un oggetto near-Earth. La cometa ha anche piccole MOID coi pianeti Giove, l'11 novembre 1960 i due oggetti si trovarono a 0,124 UA, e Venere, i due oggetti si troveranno a 0,147 UA il 1º novembre 2047. L'astronomo tedesco Maik Meyer ha ipotizzato che la cometa possa essere identificata con la : l'ipotesi è molto difficile da verificare in quanto la piccola MOID con Giove rende la sua attuale orbita soggetta a forti perturbazioni e conseguenti modifiche da parte di Giove tali da rendere aleatorio qualsiasi tentativo di correlazione tra le orbite delle due comete . È stata avanzata l'ipotesi che la cometa potesse dare origine ad uno sciame meteorico che dovrebbe manifestarsi nella notte tra il 1º gennaio ed il 2 gennaio, col radiante posizionato nei pressi della stella ζ Cephei. (it) 255P/Levy – kometa krótkookresowa, należąca do rodziny Jowisza oraz obiektów bliskich Ziemi. (pl) P/2006 T1 李維是一顆以5.24年為週期的彗星。上一次通過近日點的日期約為2006年10月7日，離太陽最近的距離約為0.989個天文單位、通過近地點的日期約為2006年9月18日，離地球最近的距離約為1.32個天文單位。在上一次通過近日點時星等只有約9.3等。 它在2006年12月1日開始沒有被觀測得到，只有60天觀測到的弧。 在2011年6月3日，李維彗星(PK06T010)的星等約為19.8等。 下一次通過近日點的日期估計為2012年1月11日，離太陽最近的距離估計約為1.007個天文單位、通過近地點的日期為2012年1月8日，離地球最近的距離估計約為0.0489個天文單位。 (zh) |
| dbo:wikiPageExternalLink | http://www.birtwhistle.org/GalleryC2006T1.htm http://ssd.jpl.nasa.gov/horizons.cgi%3Ffind_body=1&body_group=sb&sstr=2006T1 http://ssd.jpl.nasa.gov/sbdb.cgi%3Fsstr=2006T1;orb=1 http://www.aerith.net/comet/catalog/0255P/index.html http://www.minorplanetcenter.net/db_search/show_object%3Fobject_id=P/2006+T1&commit=Show https://web.archive.org/web/20160304112122/http:/scully.cfa.harvard.edu/cgi-bin/returnprepeph.cgi%3Fd=c&o=0255P |
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| dbo:wikiPageWikiLink | dbr:David_H._Levy dbr:Julian_day dbr:Perihelion dbr:List_of_periodic_comets dbc:Astronomical_objects_discovered_in_2006 dbc:Comets_in_2017 dbc:Discoveries_by_David_H._Levy dbc:Near-Earth_comets dbc:Numbered_comets dbc:Periodic_comets dbr:Comet dbr:Elongation_(astronomy) dbr:Apparent_magnitude dbr:Julian_year_(astronomy) dbr:Minimum_orbit_intersection_distance dbr:Astronomical_Unit dbr:Astronomical_unit dbr:Opposition_(planets) dbr:Minor_Planet_Center |
| dbp:aphelion | 5.069 |
| dbp:discoverer | dbr:David_H._Levy |
| dbp:discoveryDate | 2006 (xsd:integer) |
| dbp:eccentricity | 0.668200 (xsd:double) |
| dbp:epoch | 2014 (xsd:integer) (en) |
| dbp:inclination | 18.270000 (xsd:double) |
| dbp:lastP | 2006 (xsd:integer) 2012 (xsd:integer) 2017 (xsd:integer) |
| dbp:name | 255 (xsd:integer) |
| dbp:nextP | 2022 (xsd:integer) |
| dbp:perihelion | 1.008 |
| dbp:period | 1.6725528E8 |
| dbp:semimajor | 3.038 |
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| dcterms:subject | dbc:Astronomical_objects_discovered_in_2006 dbc:Comets_in_2017 dbc:Discoveries_by_David_H._Levy dbc:Near-Earth_comets dbc:Numbered_comets dbc:Periodic_comets |
| gold:hypernym | dbr:Comet |
| rdf:type | yago:WikicatAstronomicalObjectsDiscoveredIn2006 yago:WikicatComets yago:Comet109251407 yago:ExtraterrestrialObject109277686 yago:NaturalObject100019128 yago:Object100002684 yago:PhysicalEntity100001930 dbo:Planet yago:Whole100003553 yago:WikicatPeriodicComets |
| rdfs:comment | La comète Levy, officiellement 255P/Levy, est une comète périodique du système solaire, découverte le 2 octobre 2006 par David H. Levy. (fr) 255P/Levy – kometa krótkookresowa, należąca do rodziny Jowisza oraz obiektów bliskich Ziemi. (pl) P/2006 T1 李維是一顆以5.24年為週期的彗星。上一次通過近日點的日期約為2006年10月7日，離太陽最近的距離約為0.989個天文單位、通過近地點的日期約為2006年9月18日，離地球最近的距離約為1.32個天文單位。在上一次通過近日點時星等只有約9.3等。 它在2006年12月1日開始沒有被觀測得到，只有60天觀測到的弧。 在2011年6月3日，李維彗星(PK06T010)的星等約為19.8等。 下一次通過近日點的日期估計為2012年1月11日，離太陽最近的距離估計約為1.007個天文單位、通過近地點的日期為2012年1月8日，離地球最近的距離估計約為0.0489個天文單位。 (zh) 255P/Levy, formerly P/2006 T1 and P/2011 Y1, is a periodic comet with an orbital period of 5.25 years. It last came to perihelion (closest approach to the Sun) on 14 January 2012. During the 2006 passage the comet achieved an apparent magnitude of ~9.5. Levy (PK06T010) was believed to have been recovered on 3 June 2011 at magnitude 19.8, but other observatories were unable to confirm a recovery. It was most likely a false positive because of large residuals. Levy was recovered on 17 December 2011 at magnitude 19.8, and given the second designation 2011 Y1. It was then numbered. (en) La Cometa Levy 2, formalmente 255P/Levy, è una cometa periodica del Sistema solare, appartenente alla famiglia delle comete gioviane e scoperta il 2 ottobre 2006 da David Levy, come un oggetto di magnitudine 10,5. La minima distanza tra l'orbita della cometa e l'orbita della Terra (MOID) è di 0,024 UA. La cometa P/2006 T1 è quindi classificabile anche come un oggetto near-Earth. La cometa ha anche piccole MOID coi pianeti Giove, l'11 novembre 1960 i due oggetti si trovarono a 0,124 UA, e Venere, i due oggetti si troveranno a 0,147 UA il 1º novembre 2047. (it) |
| rdfs:label | 255P/Levy (en) 255P/Levy (fr) 255P/Levy (it) 255P/Levy (pl) P/2006 T1 (zh) |
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| prov:wasDerivedFrom | wikipedia-en:255P/Levy?oldid=1050957517&ns=0 |
| foaf:isPrimaryTopicOf | wikipedia-en:255P/Levy |
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