Astronomy
Planets - Venus

Bulk Parameters | Orbital Parameters | Mean Orbital Elements (J2000)
Observational Parameters | Atmospheric Parameters
Satellites

 
Bulk Parameters
Mass 4.8685 × 1024 kg
Volume 92.843 × 1010 km3
Equatorial Radius 6051.8 km
Polar Radius 6051.8 km
Volumetric Mean Radius 6051.8
Ellipticity 0.000
Mean Density 5243 kg m-3
Equatorial Surface Gravity 8.87 m s-2
Escape Velocity 10.36 km s-1
GM 0.3249 × 106 km3 s-2
Bond Albedo 0.750
Visual Geometric Albedo 0.65
Visual Magnitude -4.40
Solar Irradiance 2613.9 W m-2
Black-Body Temperature 231.7 K
Moment of Inertia 0.33 I MR-2
Topographic Range 15 km
Orbital Parameters
Semimajor Axis 108.21 × 106 km
Sidereal Orbit Period 224.701 days
Tropical Orbit Period 224.695 days
Perihelion 107.48 × 106 km
Aphelion 108.94 × 106 km
Synodic Period 583.92 days
Mean Orbital Velocity 35.02 km s-1
Maximum Orbital Velocity 35.26 km s-1
Minimum Orbital Velocity 34.79 km s-1
Orbital Inclination 3.39 °
Orbital Eccentricity 0.0067
Sidereal Rotation Period 5832.5 hours
Length of Day 2802.0 hours
Obliquity to Orbit 177.36
Mean Orbital Elements (J2000)
Semimajor Axis 0.72333199 AU
Orbital Eccentricity 0.00677323
Orbital Inclination 3.39471°
Longitude of Ascending Node 76.68069°
Longitude of Perihelion 131.53298°
Mean Longitude 181.97973°:
Observational Parameters
Maximum Apparent Diameter from Earth 66.0 arc seconds
Minimum Apparent Diameter from Earth 9.7 arc seconds
Maximum Distance from Earth 261.0 × 106 km
Minimum Distance from Earth 38.2 × 106 km
Apparent Magnitude near Opposition -4.6
Atmospheric Parameters
Surface Pressure 92 bars
Surface Density about 65 kg m-3
Scale Height 15.9 km
Average Temperature 737 K
Diurnal Temperature Range about 0
Surface Wind Speeds 0.3 to 1.0 m s-1
Mean Molecular Weight 43.45 g mol-1
Carbon Dioxide CO2 96.5%
Nitrogen N2 3.5%
Sulphur Dioxide SO2 150 ppm
Argon Ar 70 ppm
Water H2O 20 ppm
Carbon Monoxide CO 17 ppm
Helium He 12 ppm
Neon Ne 7 ppm
Satellites
Venus has no known satellites



Page compiled: Wed Sep 05 18:37:57 GMT+01:00 2001