Pulled from the following article on OPU: http://forum.outpost2.net/index.php/topic,3819.0.html ===== Type 1 (Venus\Mecury) ===== |< 100% 70% 30% >| | Equatorial Diameter: | 0.38(4 878 kM) | | Mass(Compared to Earth): | 0.055 | | Rotation Period: | 58.6D | | Surface Gravity(Compared to Earth): | 0.38 | | Mean Distance AU from Sun(Compared to Earth): | 0.387 | | Solar Energy Recevied(Compared to Earth): | 6.6 | | Aprox. Mean Temp. (Celsius): | 350(Day), -170(Night) | | Escape Velocity(kM\Sec): | 4.25 | | Principal Atmospheric Gases: | Helium Trace | ===== Type 2 (Mars) ===== |< 100% 70% 30% >| | Equatorial Diameter: | 0.53(6 794 kM) | | Mass(Compared to Earth): | 0.11 | | Rotation Period: | 24.62h | | Surface Gravity(Compared to Earth): | 0.38 | | Mean Distance AU from Sun(Compared to Earth): | 1.52 | | Solar Energy Recevied(Compared to Earth): | 0.44 | | Aprox. Mean Temp. (Celsius): | -23(Avg.) | | Escape Velocity(kM\Sec): | 5.02 | | Principal Atmospheric Gases: | Carbon Dioxide, Nitrogen | ===== Type 3 (Pluto) ===== |< 100% 70% 30% >| | Equatorial Diameter: | 0.002(22 kM) | | Mass(Compared to Earth): | 0.000000018 | | Rotation Period: | 0.32D | | Surface Gravity(Compared to Earth): | 0.001 | | Mean Distance AU from Sun(Compared to Earth): | 1.52 | | Solar Energy Recevied(Compared to Earth): | 0.43 | | Aprox. Mean Temp. (Celsius): | -50 | | Escape Velocity(kM\Sec): | Negligible | | Principal Atmospheric Gases: | None | ===== Type 4 (Mercury) ===== |< 100% 70% 30% >| | Equatorial Diameter: | 0.27(3 476 kM) | | Mass(Compared to Earth): | 0.12 | | Rotation Period: | 27.3D, Retrograde | | Surface Gravity(Compared to Earth): | 0.165 | | Mean Distance AU from Sun(Compared to Earth): | 1.0 | | Solar Energy Recevied(Compared to Earth): | 1.0 | | Aprox. Mean Temp. (Celsius): | 130(Day), -170(Night) | | Escape Velocity(kM\Sec): | 2.38 | | Principal Atmospheric Gases: | None | ===== Type 5 (Venus) ===== |< 100% 70% 30% >| | Equatorial Diameter: | 0.95(12 104 kM) | | Mass(Compared to Earth): | 0.815 | | Rotation Period: | 243D, Retrograde | | Surface Gravity(Compared to Earth): | 0.91 | | Mean Distance AU from Sun(Compared to Earth): | 0.723 | | Solar Energy Recevied(Compared to Earth): | 2.2 | | Aprox. Mean Temp. (Celsius): | 450(Surface), -23(Clouds) | | Escape Velocity(kM\Sec): | 10.36 | | Principal Atmospheric Gases: | Carbon Dioxide, Nitrogen | ===== Type 6 (Pluto) ===== |< 100% 70% 30% >| | Equatorial Diameter: | 0.074(940 kM) | | Mass(Compared to Earth): | 0.00017 | | Rotation Period: | 9.08h | | Surface Gravity(Compared to Earth): | 0.01 | | Mean Distance AU from Sun(Compared to Earth): | 2.8 | | Solar Energy Recevied(Compared to Earth): | 0.43 | | Aprox. Mean Temp. (Celsius): | -38 | | Escape Velocity(kM\Sec): | Negligible | | Principal Atmospheric Gases: | None | ===== Type 7 (Pluto) ===== |< 100% 70% 30% >| | Equatorial Diameter: | 0.18(2 300 kM) | | Mass(Compared to Earth): | 0.002 | | Rotation Period: | 6.4D | | Surface Gravity(Compared to Earth): | 0.04 | | Mean Distance AU from Sun(Compared to Earth): | 39.52 | | Solar Energy Recevied(Compared to Earth): | 0.0006 | | Aprox. Mean Temp. (Celsius): | -230 | | Escape Velocity(kM\Sec): | 1.1 | | Principal Atmospheric Gases: | Traces of Methane, Carbon Dioxide |