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Mercury
Orbit data - Object data - Atmosphere - Mythology - Links Go to the bottom of the page
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Photo of the planet Mercury
Mercury

Hide this area Orbit data
Mean distance from the star Sun 57.910.000 km
0,3871 AU
Minimum distance from the star Sun (perihelion) 46.003.500 km
Maximum distance from the star Sun (aphelion) 69.815.900 km
Orbital period around the star Sun (sideric) 87,9694 d
Orbital period around the star Sun (synodic) 115,88 d
Mean orbital velocity 47,87 km/s
Orbital inclination 7,0048 °
Eccentricity of the orbit around the star Sun 0,2056
Hide this area Object data
Mass 3,3022 × 1023 kg
Equatorial radius 2439,7 km
Oblateness 0,0
Mean density 5,427 g/cm³
Escape velocity 4,25 km/s
Surface force of gravity 3,701 m/s²
Tilt of axis 0,01 °
Rotational period 58,6462 d
Equatorial rotational velocity 10,891 km/h
Mean surface temperature 442 K
Minimum surface temperature 90 K
Maximum surface temperature 725 K
Albedo 0,106
Apparent magnitude - 0,42 mvis
Hide this area Atmosphere
The surface pressure of the atmosphere is < 10-15 bar.
42,0 %   Oxygen (O2)
29,0 %   Sodium (Na)
22,0 %   Hydrogen (H2)
6,0 %   Helium (He)
0,5 %   Potassium (K)
Hide this area Mythology

Hermes is according to greek mythology the herald of the Olympian gods. He is also the god of merchants and sheperds. Hermes is the son of Zeus and the nymph Maia. The roman god Mercury is identical to the greek god Hermes.

Being the messenger of the gods, it was his duty to guide the souls of the dead down to the underworld.

 Symbol of mythology for Mercury
Hide this area Links
File icon Gustav Holst: The Planets - Mercury: The Winged Messenger (72 kB)
 
File icon NASA Spacelink - Solar System Lithograph Set - Our Solar System
Lithograph number LG-2001-08-02-HQ (~ 3400 kB)
File icon NASA (Mariner 10) - Large Faults on Mercury
© Calvin J. Hamilton ("Views of the Solar System")
File icon USGS/NASA (Mariner 10) - Incoming View of Mercury
Link to the page "Views of the Solar System"
File icon USGS/NASA (Mariner 10) - Outgoing View of Mercury
© Mark Robinson ("Views of the Solar System")
File icon Welcome to the Planets
Online version of the "Planetary Data System Educational CD-ROM"
File icon A Multimedia Tour of the Solar System - The Nine Planets
© William A. Arnett
© 2010 by Bernd Onasch - Imprint Go to the top of the page
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