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Pluto
Introduction - Orbit data - Object data - Atmosphere - Mythology - Satellites - Links Go to the bottom of the page
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Photo of the dwarf planet Pluto
134340 Pluto

Hide this area Introduction

The IAU revoked the status of "planet" from the satellite Pluto in 2006. The newly founded group of dwarf planets consists among other of the former planet Pluto and the largest asteroid Ceres.

Hide this area Orbit data
Mean distance from the star Sun 5.913.520.000 km
39,4817 AU
Minimum distance from the star Sun (perihelion) 4.435.128.000 km
Maximum distance from the star Sun (aphelion) 7.524.587.000 km
Orbital period around the star Sun (sideric) 247,92 y
Orbital period around the star Sun (synodic) 366,72 d
Mean orbital velocity 4,72 km/s
Orbital inclination 17,1418 °
Eccentricity of the orbit around the star Sun 0,2444
Hide this area Object data
Discovered by Clyde William Tombaugh 1930
Mass 1,314 × 1022 kg
Equatorial radius 1151 km
Oblateness 0,0
Mean density 2,05 g/cm³
Escape velocity 1,30 km/s
Surface force of gravity 0,655 m/s²
Tilt of axis 122,52 °
Rotational period (reciprocal) - 6,3872 d
Equatorial rotational velocity 47,6 km/h
Mean surface temperature 50 K
Minimum surface temperature 31 K
Maximum surface temperature 55 K
Albedo 0,40
Apparent magnitude + 15,12 mvis
Hide this area Atmosphere
The surface pressure of the atmosphere is < 3 × 10-6 bar.
  Methane (CH4)
  Nitrogen (N2)
Hide this area Mythology

Hades is the lord of the dead and ruler of the nether world, which is referred to as the domain of Hades or, by transference, as Hades alone. He is the son of Cronus and Rhea. The roman god Pluto is identical to Hades.

He ruled the underworld together with Persephone, whom he abducted from the upperworld. Hades possesses the riches of the earth, and is referred to as "the Rich One".

Symbol of mythology for Pluto
Hide this area Satellites
No.  Name Distance Eccentricity Radius Mass
1 Charon Charon 19636 19.636 km 0.0002 0,0002 593 593 km 21.16 1,6 × 1021 kg
2 II  Nix Nix 48675 48.675 km 0.002 0,002 22 22 - 65 km 16.5 5,0 × 1016 kg
3 III  Hydra Hydra 64780 64.780 km 0.005 0,005 22 22 - 65 km 16.5 5,0 × 1016 kg
Hide this area Links
File icon STScI/NASA (Hubble Space Telescope) - The Surface of Pluto
Link to the page "Views of the Solar System"
File icon STScI/NASA (Hubble Space Telescope) - Pluto & Charon
Link to the page "Views of the Solar System"
File icon STScI/NASA (Hubble Space Telescope) - The "Double Planet" Pluto & Charon
Link to the page "Views of the Solar System"
File icon A Multimedia Tour of the Solar System - The Nine Planets
© William A. Arnett
© 2018 by Bernd Onasch - Imprint Go to the top of the page
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