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Ang Kometang Halley (opisyal na ipinangalanan bilang 1P/Halley)[2] ay ang pinaka-kilalang sa mga maikling-periyod na mga buntala at nakikita sa Daigdig kada-75 o 76 na taon.[2][10]

1P/Halley (Halley's Comet)
A color image of Comet Halley, shown flying to the left aligned flat against the sky
Pagkatuklas
Natuklasan niprehistoric (observation);
Edmond Halley (recognition of periodicity)
Orbital characteristics[2]
Epoch 2449400.5
(17 February 1994)
Aphelion35.1 AU
(9 December 2023)[1]
Perihelion0.586 AU
last perihelion: 9 February 1986
next perihelion: 28 July 2061[1]
Semi-major axis17.8 AU
Eccentricity0.967
Orbital period75.3 a[2]
Inclination162.3°
Pisikal na katangian
Dimensiyon15×8 km,[3] 11 km (mean)[2]
Mass2.2×1014 kg[4]
Mean density0.6[5] (estimates range from 0.2 to 1.5 g/cm3[6])
Sidereal rotation period2.2 d (52.8 h) (?)[7]
Albedo0.04[8]
Apparent magnitude28.2 (in 2003)[9]

Mga sanggunianBaguhin

  1. 1.0 1.1 Maling banggit (Hindi tamang <ref> tag; walang binigay na teksto para sa refs na may pangalang horizons); $2
  2. 2.0 2.1 2.2 2.3 2.4 Maling banggit (Hindi tamang <ref> tag; walang binigay na teksto para sa refs na may pangalang jpldata); $2
  3. Maling banggit (Hindi tamang <ref> tag; walang binigay na teksto para sa refs na may pangalang Learn); $2
  4. Maling banggit (Hindi tamang <ref> tag; walang binigay na teksto para sa refs na may pangalang mass); $2
  5. Maling banggit (Hindi tamang <ref> tag; walang binigay na teksto para sa refs na may pangalang density); $2
  6. S. J. Peale (1989). "On the density of Halley's comet". Icarus. 82 (1): 36–49. doi:10.1016/0019-1035(89)90021-3. densities obtained by this procedure are in reasonable agreement with intuitive expectations of densities near 1 g/cm3, the uncertainties in several parameters and assumptions expand the error bars so far as to make the constraints on the density uniformative ... suggestion that cometary nuclei tend to by very fluffy, ... should not yet be adopted as a paradigm of cometary physics.
  7. S. J. Peale, J. J. Lissauer (1989). "Rotation of Halley's Comet". Icarus. 79 (2): 396–430. doi:10.1016/0019-1035(89)90085-7.
  8. R. R. Britt (29 November 2001). "Comet Borrelly Puzzle: Darkest Object in the Solar System". Space.com. Sininop mula sa orihinal noong 30 November 2001. Hinango noong 16 December 2008.
  9. Maling banggit (Hindi tamang <ref> tag; walang binigay na teksto para sa refs na may pangalang ESO2003); $2
  10. G. W. Kronk. "1P/Halley". cometography.com. Hinango noong 13 October 2008.