Ang Kometang Halley (opisyal na ipinangalanan bilang 1P/Halley)[kailangan ng sanggunian] ay ang pinaka-kilalang sa mga maikling-periyod na mga buntala at nakikita sa Daigdig kada-75 o 76 na taon.[6]
 | |
| Pagkatuklas | |
|---|---|
| Natuklasan ni | prehistoric (observation); Edmond Halley (recognition of periodicity) |
| Orbital characteristics[1] | |
| Epoch 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[kailangan ng sanggunian] |
| Semi-major axis | 17.8 AU |
| Eccentricity | 0.967 |
| Orbital period | 75.3 a[kailangan ng sanggunian] |
| Inclination | 162.3° |
| Pisikal na katangian | |
| Dimensiyon | 15×8 km,[kailangan ng sanggunian] 11 km (mean)[kailangan ng sanggunian] |
| Mass | 2.2×1014 kg[kailangan ng sanggunian] |
| Mean density | 0.6[kailangan ng sanggunian] (estimates range from 0.2 to 1.5 g/cm3[3]) |
| Sidereal rotation period | 2.2 d (52.8 h) (?)[4] |
| Albedo | 0.04[5] |
| Apparent magnitude | 28.2 (in 2003)[kailangan ng sanggunian] |
Mga sanggunian
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