Merkur  

Merkur

Merkur
Orbital Characteristics of Mercury

Eigenschaften des Orbits

Perihel: 46,001,200 km, 0.307499 AE
Aphel: 69,816,900 km, 0.466697 AE
Große Halbachse: 57,909,100 km, 0.387098 AE
Exzentrizität: 0.205630
Siderische Umlaufzeit: 87.9691 Tage, 0.240846 Jahre
Synodische Umlaufzeit: 115.88 Tage
Mittlere Orbitalgeschwindigkeit: 47.87 km/s
Mittlere Anomalie: 174.796°
Neigung der Bahnebene: 7.005°
Argument des Knotens: 48.331°
Argument des Perihels: 29.124°

Satelliten/Monde: 0



Physical Characteristics of Mercury

Physikalische Eigenschaften

Äquatorradius: 2,439.7 km (0.3829 x Erde)
Abplattung: < 0.0006
Oberfläche: 7.48×1070.108 km2 ( x Erde)
Volumen: 6.083×1010 km3 (0.054 x Erde)
Masse: 3.3022×1023 kg (0.055 x Erde)
Mittlere Dichte: 5.427 g/cm3
Fallbeschleunigung: 3.7 m/s2
Fluchtgeschwindigkeit: 4.25 km/s
Sidereal rotation period: 58.646 Earth days, 1407.5 Earth hours
Neigung der Rotationsachse: 2.11′ ± 0.1′
Geometrische Albedo: 0.106
Mittlere Oberflächentemperaturen: 100/700 K, -173/427 °C, -279/801 °F
Scheinbare Helligkeit: -1.9
Winkeldurchmesser: 4.5" – 13"


The Atmosphere of Mercury

Die Atmosphäre

Zusammensetzung:
  • 42% Oxygen (O2)
  • 29.0% Sodium
  • 22.0% Hydrogen (H2)
  • 6.0% Helium
  • 0.5% Potassium
  • Trace amounts of Argon, Nitrogen (N2), Carbon Dioxide (CO2), water vapor (H2O), Xenon, Krypton, Neon



    Mercury images:


    www.flickr.com

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