mirrored file at http://SaturnianCosmology.Org/ For complete access to all the files of this collection see http://SaturnianCosmology.org/search.php ========================================================== _________________________________________________________________ Planetary Fact Sheet - U.S. Units _________________________________________________________________ MERCURY VENUS EARTH MOON MARS -- JUPITER SATURN URANUS NEPTUNE PLUTO Mass (10^21tons) 0.364 5.37 6.58 0.081 0.708 -- 2093 627 95.7 113 0.0138 Diameter (miles) 3032 7521 7926 2159 4222 -- 88,846 74,897 31,763 30,775 1485 Density (lbs/ft^3) 339 327 344 209 246 -- 83 43 79 102 110 Gravity (ft/s^2) 12.1 29.1 32.1 5.3 12.1 -- 75.9 29.4 28.5 36.0 1.9 Escape Velocity (miles/s) 2.7 6.4 7.0 1.5 3.1 -- 37.0 22.1 13.2 14.6 0.7 Rotation Period (hours) 1407.6 -5832.5 23.9 655.7 24.6 -- 9.9 10.7 -17.2 16.1 -153.3 MERCURY VENUS EARTH MOON MARS -- JUPITER SATURN URANUS NEPTUNE PLUTO Length of Day (hours) 4222.6 2802.0 24.0 708.7 24.7 -- 9.9 10.7 17.2 16.1 153.3 Distance from Sun (10^6 miles) 36.0 67.2 93.0 0.239* 141.6 -- 483.8 890.8 1784.8 2793.1 3647.2 Perihelion (10^6 miles) 28.6 66.8 91.4 0.226* 128.4 -- 460.1 840.4 1703.4 2761.6 2755.8 Aphelion (10^6 miles) 43.4 67.7 94.5 0.252* 154.9 -- 507.4 941.1 1866.4 2824.5 4538.7 Orbital Period (days) 88.0 224.7 365.2 27.3 687.0 -- 4331 10,747 30,589 59,800 90,588 Orbital Velocity (miles/s) 29.7 21.8 18.5 0.64 15.0 -- 8.1 6.0 4.2 3.4 2.9 Orbital Inclination (degrees) 7.0 3.4 0.0 5.1 1.9 -- 1.3 2.5 0.8 1.8 17.2 Orbital Eccentricity 0.205 0.007 0.017 0.055 0.094 -- 0.049 0.057 0.046 0.011 0.244 Axial Tilt (degrees) 0.01 177.4 23.5 6.7 25.2 -- 3.1 26.7 97.8 28.3 122.5 MERCURY VENUS EARTH MOON MARS -- JUPITER SATURN URANUS NEPTUNE PLUTO Mean Temperature (F) 333 867 59 -4 -85 -- -166 -220 -320 -330 -375 Surface Pressure (atmospheres) 0 91 1 0 0.01 -- Unknown* Unknown* Unknown* Unknown* 0 Number of Moons 0 0 1 0 2 -- 61 31 26 13 1 Ring System? No No No No No -- Yes Yes Yes Yes No Global Magnetic Field? Yes No Yes No No -- Yes Yes Yes Yes Unknown * - See the [41]Fact Sheet Notes. _________________________________________________________________ [42]Planetary Fact Sheet in Metric Units [43]Planetary Fact Sheet - Values compared to Earth [44]Index of Planetary Fact Sheets - More detailed fact sheets for each planet [45]Notes on the Fact Sheet - Explanations of the values and headings in the fact sheet [46]Schoolyard Solar System - Demonstration scale model of the solar system for the classroom [47]NSSDC Planetary Home Page _________________________________________________________________ [NASA Logo] Author/Curator: Dr. David R. Williams, [48]dwilliam at nssdc.gsfc.nasa.gov NSSDC, Mail Code 633 NASA Goddard Space Flight Center Greenbelt, MD 20771 +1-301-286-1258 _________________________________________________________________ NASA Official: Ed Grayzeck, edwin.j.grayzeck at nasa.gov Last Updated: 16 March 2004, DRW References 1. http://nssdc.gsfc.nasa.gov/planetary/factsheet/mercuryfact.html 2. http://nssdc.gsfc.nasa.gov/planetary/factsheet/venusfact.html 3. http://nssdc.gsfc.nasa.gov/planetary/factsheet/earthfact.html 4. http://nssdc.gsfc.nasa.gov/planetary/factsheet/moonfact.html 5. http://nssdc.gsfc.nasa.gov/planetary/factsheet/marsfact.html 6. http://nssdc.gsfc.nasa.gov/planetary/factsheet/jupiterfact.html 7. http://nssdc.gsfc.nasa.gov/planetary/factsheet/saturnfact.html 8. http://nssdc.gsfc.nasa.gov/planetary/factsheet/uranusfact.html 9. http://nssdc.gsfc.nasa.gov/planetary/factsheet/neptunefact.html 10. http://nssdc.gsfc.nasa.gov/planetary/factsheet/plutofact.html 11. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#mass 12. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#diam 13. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#dens 14. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#grav 15. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#escv 16. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#rotp 17. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#leng 18. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#dist 19. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#peri 20. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#peri 21. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#orbp 22. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#orbv 23. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#orbi 24. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#orbe 25. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#axit 26. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#temp 27. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#surp 28. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#sats 29. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#ring 30. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html#magf 31. http://nssdc.gsfc.nasa.gov/planetary/factsheet/mercuryfact.html 32. http://nssdc.gsfc.nasa.gov/planetary/factsheet/venusfact.html 33. http://nssdc.gsfc.nasa.gov/planetary/factsheet/earthfact.html 34. http://nssdc.gsfc.nasa.gov/planetary/factsheet/moonfact.html 35. http://nssdc.gsfc.nasa.gov/planetary/factsheet/marsfact.html 36. http://nssdc.gsfc.nasa.gov/planetary/factsheet/jupiterfact.html 37. http://nssdc.gsfc.nasa.gov/planetary/factsheet/saturnfact.html 38. http://nssdc.gsfc.nasa.gov/planetary/factsheet/uranusfact.html 39. http://nssdc.gsfc.nasa.gov/planetary/factsheet/neptunefact.html 40. http://nssdc.gsfc.nasa.gov/planetary/factsheet/plutofact.html 41. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html 42. http://nssdc.gsfc.nasa.gov/planetary/factsheet/index.html 43. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planet_table_ratio.html 44. http://nssdc.gsfc.nasa.gov/planetary/planetfact.html 45. http://nssdc.gsfc.nasa.gov/planetary/factsheet/planetfact_notes.html 46. http://nssdc.gsfc.nasa.gov/planetary/education/schoolyard_ss/ 47. http://nssdc.gsfc.nasa.gov/planetary/planetary_home.html 48. mailto:dwilliam at nssdc.gsfc.nasa.gov