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2007 WD5 Inhaltsverzeechnes Méiglech Kollisioun mam Mars | Kuckt och | Um Spaweck | Referenzen Navigatiounsmenüwww.extrasolar-planets.comwww.spiegel.dewww.nasa.govAnimationBunnsimulatiounNASA Near-Earth Object Program

Apollo-AsteroidenNet numeréiert Asteroiden


äerdnoen Asteroid20. November2007Catalina Sky Surveyelliptesch BunnMarsHaaptasteroidenceintureAstronomesch EenheetApollo-AsteroidenMars30. Januar2008UTCKraterJoer 1908 an der Tunguska a SibirienAtmosphärMarsatmosphärSaturn 01.svg












2007 WD5




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2007 WD5
Orbittyp
Apollo-Asteroid
Positioun (Equinoxe: J2000.0)
Grouss Hallefachs2,54 A.E.

Perihel – Aphel
1,01016 – 4,07 AE
Exzentrizitéit0,603
Inklinatioun2,37 Grad
Sideresch Ëmlafzäit4,05 a
Mëttel Bunnvitess
18,69 km/s
Physikalesch Eegenschaften
Duerchmiesser50 m
Mass? kg
Albedo
Mëttel Dicht? g/cm3
Rotatiounsperiod
Absolut Hellegkeet24,308 mag
Spektralklass?
Entdeckung
Entdecker
Catalina Sky Survey
Datum
20. November 2007
Aner Bezeechnungen

Den 2007 WD5 ass en äerdnoen Asteroid, deen den 20. November 2007 vum Catalina Sky Survey entdeckt gouf. Seng elliptesch Bunn reecht bis op déi aner Säit vun der Marsëmlafbunn an d'Haaptasteroidenceinture eran. Säi sonnenächste Bunnpunkt ass knappss bannenzeg vun der Äerdbunn. De Perihel ass eppes méi grouss wéi eng Astronomesch Eenheet, awer déi elliptesch Äerdbunn kräizt den Asteroid trotzdeem. Domat gehéiert hien zu der Grupp vun den Apollo-Asteroiden. Mat sengem Duerchmiesser vu ronn 50 Meter ass hien e relativ klengt Objet. Trotzdeem gëtt hie méi genee observéiert, well seng Bunn no laanscht d'Äerd leeft. Weider Observatioune vun de Wëssenschaftler hunn erginn, datt den Asteroid keng Gefor fir d'Äerd duerstellt.




Inhaltsverzeechnes





  • 1 Méiglech Kollisioun mam Mars


  • 2 Kuckt och


  • 3 Um Spaweck


  • 4 Referenzen




Méiglech Kollisioun mam Mars |




Eng méiglechKollisioun mam Mars


Bei der Bunnbestëmmung gouf awer festgestallt, datt den Asteroid de Mars vläicht treffe kéint. Den 30. Januar 2008 géint 12 Auer UTC koum et zu engem noe Rendez-vous. Hie war op enger Distanz vu 26.000 Kilometer laanscht de Planéit geflunn. Dat bedeit eng Distanz vu ronn siwe Marsradien zu der Uewerfläch.[1]


Sou eng Kollisioun hätt e Krater vun zirka 800 Meter Duerchmiesser gemaach. Am Joer 1908 an der Tunguska a Sibirien soll en ähnlech groussen Asteroid mat der Äerd kollidéiert sinn. Dobäi entstoung awer kee Krater, well sech den Objet an der dichter Atmosphär opgeléist hat, ir et op de Buedem opgeschloen hat. D'Marsatmosphär ass méi dënn wéi déi vun der Äerd. Hei géif den Asteroid de Buedem treffen.



Kuckt och |


Saturn 01.svgPortal Astronomie


  • Alphabetesch Lëscht vun Asteroiden

  • Benennung vun Asteroiden a Koméiten

  • Äerdnoen Asteroid

  • Asteroid


Um Spaweck |


  • www.extrasolar-planets.com

  • www.spiegel.de


  • (en) www.nasa.gov


  • Animation QuickTime


  • Bunnsimulatioun (Java)



Referenzen



  1. ↑ NASA Near-Earth Object Program, 9. Januar 2008




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