Fyrimynd:Planet Infoboks/Pluto

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Pluto Astronomical symbol of Pluto
Pluto
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
lág miðal
33 K 44 K 55 K
Adjective Plutonian
Atmosferu eginleikar
Atmosferutrýst 0,30 pascal (summarhámark)
Samanseting køvievni, metan