Komet Halley

Dari Wikipedia baso Minang, ensiklopedia bebas
Lompek ka: navigasi, cari
1P/Halley (Halley's Comet)
A color image of Comet Halley, shown flying to the left aligned flat against the sky
Panamu
Ditamuan dek prehistoric (observation);
Edmond Halley
Jangka wakatu 2449400.5
(17 February 1994)
Aphelion 35.1 AU
(9 December 2023)[2]
Perihelion 0.586 AU
last perihelion: 9 February 1986
next perihelion: 28 July 2061[2]
Sumbu semi-mayor 17.8 AU
Eksentrisitas 0.967
Periode orbit 75.3 a[1]
Inklinasi 162.3°
Karakteristik fisik
Dimensi 15×8 km,[3] 11 km (rato-rato)[1]
Masso 2.2×1014 kg[4]
Masso jenis
rato-rato
0.6[5] (estimates range from 0.2 to 1.5 gr/cm3[6])
Kacapatan palapehan ~7.305 km/detik
Hari sideris 2.2 d (52.8 h) (?)[7]
Albedo 0.04[8]
Magnitudo 28.2 (in 2003)[9]

Komet Halley (pron.: /ˈhæli/ or /ˈhli/; rasmi ditandoi 1P/Halley)[1] marupoan benda langik nan tanamo sabagai salah satu komet maso pendek, dan benda ko buliah dilihek jo mato dari Bumi satiok 75 atau 76 taun.[1][10] Komet Halley adolah satu-satunyo Komet maso pendek nan sabana jaleh diliek jo mato kapalo dari bumi, penampakan ko mungkin dapek dilieek dek manusia duo kali sa umua hiduiknyo.[11] mungkin penampakannyo nan labiah spektakuler muncul satu kali dalam ribuan taun.

Rujukan[suntiang | suntiang sumber]

  1. ^ a b c d e "JPL Small-Body Database Browser: 1P/Halley". Jet Propulsion Laboratory. Kasalahan: wakatu indak tapek. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1P. Diakses pado 13 Oktober 2008. 
  2. ^ a b Donald K. Yeomans. "Horizon Online Ephemeris System". California Institute of Technology, Jet Propulsion Laboratory. http://ssd.jpl.nasa.gov/horizons.cgi. Diakses pado 8 September 2006. 
  3. ^ "What Have We Learned About Halley's Comet?". Astronomical Society of the Pacific (No. 6 — Fall 1986). 16 Juli 1986. http://www.astrosociety.org/education/publications/tnl/06/06.html. Diakses pado 16 Desember 2008. 
  4. ^ G. Cevolani, G. Bortolotti and A. Hajduk (1987). "Halley, comet's mass loss and age". Il Nuovo Cimento C (Italian Physical Society) 10 (5): 587–591. doi:10.1007/BF02507255. Bibcode1987NCimC..10..587C. http://www.springerlink.com/content/0r3801302547v3x8/. 
  5. ^ R. Z. Sagdeev, P. E. Elyasberg, V. I. Moroz. (1988). "Is the nucleus of Comet Halley a low density body?". Nature 331 (6153): 240–242. doi:10.1038/331240a0. Bibcode1988Natur.331..240S. 
  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. Bibcode1989Icar...82...36P. "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. Bibcode1989Icar...79..396P. 
  8. ^ R. R. Britt (29 November 2001). "Comet Borrelly Puzzle: Darkest Object in the Solar System". Space.com. http://www.space.com/scienceastronomy/solarsystem/borrelly_dark_011129.html. Diakses pado 16 Desember 2008. 
  9. ^ "New Image of Comet Halley in the Cold". European Southern Observatory. 1 September 2003. http://www.eso.org/public/outreach/press-rel/pr-2003/phot-27-03.html. Diakses pado 22 Pebruari 2009. 
  10. ^ G. W. Kronk. "1P/Halley". cometography.com. http://cometography.com/pcomets/001p.html. Diakses pado 13 Oktober 2008. 
  11. ^ M. Delehanty. "Comets, awesome celestial objects". AstronomyToday. http://www.astronomytoday.com/astronomy/comets.html. Diakses pado 15 Maret 2007.