Object | Mars | Sun |
---|---|---|
Type | Rocky planet | Star, yellow dwarf |
Age | 4.6 billion years | 4.6 billion years |
Diameter | 6,779 km | 1,392,684 km |
Mean radius | 3,389 km | 696,342 km |
Mass | 6.39 × 1023 kg | 1.98 × 1030 kg |
Rotation duration | 24 hours | 24 days |
Surface temperature (average) |
210 K -63 °C -82 °F |
5,778 K 5,504 °C 9,940 °F |
Surface gravity | 3.7 m/s² | 274.4 m/s² |
Mean density | 3.9 g/cm3 | 1.4 g/cm3 |
Circumference | 21,344 km | 4.3 million km |
Surface area | 144 million km² | 6.09 × 1012 km2 |
Volume | 1.63 × 1011 km3 | 1.41 × 1018 km3 |
Escape velocity | 5 km/s | 617.7 km/s |
Average orbital speed | 24 km/s | 1.99 km/s |
Atmosphere composition | 96% carbon dioxide, 1.9% argon, 1.9% nitrogen, 0.15% oxygen, 0.05% carbon monoxide, 0.02% water vapor, 0.01% nitrogen oxide |
73% hydrogen, 25% helium, 0.8% oxygen, 0.3% carbon |
Crust composition | silica, calcium sulfate, iron, magnetite |
73% hydrogen, 25% helium, 0.8% oxygen, 0.3% carbon |
Distance from the Milky Way center | 27,200 light years | 27,200 light years |
Right ascension | - | 19h 4m 30s |
Declination | - | +63.87° |