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Komet Borrelly

19P/Borrelly

Komet Borrelly posnet samo 160 sekund preden se mu je vesoljsko plovilo Deep Space 1 najbolj približalo.
Odkritje
OdkriteljAlphonse Borrelly
Datum odkritja28. december 1904
Oznake
1905 II; 1911 VIII; 1918 IV;
1925 VIII; 1932 IV; 1953 IV;
1960 V; 1967 VIII; 1974 VII;
1981 IV; 1987 XXXIII; 1994 XXX
Lastnosti tira
Epoha8. september 2001 (JD 2452160,5)
Odsončje5,83 a.e.
Prisončje1,35 a.e.
Velika polos3,59 a.e.
Izsrednost0,624
Tirna doba6,8 let
Naklon tira30,3°
Zadnje prisončje22. julij 2008
Naslednje prisončje28. maj 2015

Komet Borrelly (uradna oznaka je 19P/Borrelly) je periodični komet z obhodno dobo 6,8 let. Pripada Jupitrovi družini kometov. Mimo kometa je letela vesoljsko plovilo Deep Space 1 v letu 2001.

Odkritje

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Komet je odkril Alphonse Borrelly (1842–1926) med običajnim iskanjem kometov v Marseillu, Francija, 28. decembra 1904.

Značilnosti

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Jedro kometa ima naslednje parametre:

  • velikost: 8×4×4 km[1]
  • gostota: 0,3 g/cm³[2]
  • masa: 2×1013 kg[3]
  • albedo: 0.03[4]

Mimolet vesoljskega plovila Deep Space 1

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Posnetek kometa Borrelly v infrardeči svetlobi

Mimo kometa Borrelly je 21. septembra 2001 letelo poskusno (preizkus nove opreme) vesoljsko plovilo Deep Space 1. Vesoljsko plovilo je poslalo na Zemljo čudovite posnetke in podatke o kometu.

Sklici

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  1. Weaver, H. A.; Stern, S.A.; Parker, J. Wm. (2003). »Hubble Space Telescope STIS Observations of Comet 19P/BORRELLY during the Deep Space 1 Encounter«. The American Astronomical Society. Zv. 126. str. 444–451. doi:10.1086/375752. Arhivirano iz prvotnega spletišča dne 10. maja 2020. Pridobljeno 16. decembra 2008.
  2. Britt, D.T.; Consol-magno G.J.; Merline, W.J. (2006). »Small Body Density and Porosity: New Data, New Insights« (PDF). Lunar and Planetary Science XXXVII. Pridobljeno 16. decembra 2008.
  3. Uporabljen je bil obrazec za prostonino elipsoida velikega 8x4x4 km * gostota drobljenca (rubble pile, drobljeni material) 0,3 g/cm³, kar nam da za maso (m=d*v) vrednost 2.0E+13 kg.
  4. Robert Roy Britt (29. november 2001). »Comet Borrelly Puzzle: Darkest Object in the Solar System«. Space.com. Pridobljeno 16. decembra 2008.

Zunanje povezave

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Predhodnik:
Komet Perrine-Mrkos
(18D/Perrine-Mrkos)
Seznam periodičnih kometov
Komet Borrelly
(19P/Borrelly)
Naslednik:
Komet Westphal
(20D/Westphall)
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Komet Borrelly
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