Fyrimynd:Planet Infoboks/Pluto
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|---|---|---|---|---|---|---|---|
| Uppdaging | |||||||
| Uppdagari | Clyde W. Tombaugh | ||||||
| Uppdagað | 18. februar 1930 | ||||||
| Ringrás um sólina | |||||||
| Semi-major axis | 5 906 376 272 km 39,481 686 77 au | ||||||
| Orbital circumference | 36,530 Tm 244,186 au | ||||||
| Eccentricity | 0,248 807 66 | ||||||
| Perihelion | 4 436 824 613 km 29,658 340 67 au | ||||||
| Aphelion | 7 375 927 931 km 49,305 032 87 au | ||||||
| Orbital period | 90 613,3055 døgn (248,09 ár) | ||||||
| Synodic period | 366,73 døgn | ||||||
| Avg. Orbital Speed | 4 666 km/s | ||||||
| Max. Orbital Speed | 6 112 km/s | ||||||
| Min. Orbital Speed | 3 676 km/s | ||||||
| Inclination | 17,141 75° (11,88° frá sólarekvator) | ||||||
| Longitude of the ascending node |
110,303 47° | ||||||
| Argument of the perihelion |
113,763 29° | ||||||
| Umhvørvi | |||||||
| Mánar | 3 | ||||||
| Aliseginleikar | |||||||
| Diametur | 2306 ± 20 km (18% av Jørðini) | ||||||
| Vídd á Yvirflata | 1,795×107 km2 (0,033 Jørðir) | ||||||
| Rúmd | 7,15×109 km3 (0,0066 Jørðir) | ||||||
| Massi | (1,305±0,007)×1022 kg[1] (0,0021 Jørðir) | ||||||
| Miðaldensitetur | 2,03±0,06 kg/dm3 [2] | ||||||
| tyngdarakseleratión á ekvator | 0,58 m/s2 (0,059 jarðaraks.) | ||||||
| Escape velocity | 1,2 km/s | ||||||
| snúðningstíð | 6,387230 døgn (6 d 9 h 17 m 36 s) | ||||||
| Snúðningsferð | 47,18 km/h (um ekvator) | ||||||
| Axial tilt | 122,54° (to orbit) 115,60° (to the ecliptic)[3] | ||||||
| Right ascension of North pole |
133,02° (8 h 52 min 5 s) | ||||||
| Declination | -9,09° | ||||||
| Albedo | 0,49–0,66 (varies by 35%) [4][5] | ||||||
| Yvirflatarhiti |
| ||||||
| Adjective | Plutonian | ||||||
| Atmosferu eginleikar | |||||||
| Atmosferutrýst | 0,30 pascal (summarhámark) | ||||||
| Samanseting | køvievni, metan | ||||||
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