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Mercury

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Mercury

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  1. Image by Mariner 4, 29 March 1974 Mercury distance from Sun = .387 AU rotation period = 58.6 days orbital period = 87.9 days orbital eccentricity = .206 orbital inclination = 7.0o axis inclination = 2o mass/me = .0553 radius/re = .38 albedo = .11 gravity/ge = .38 number of satellites = 0 atmosphere: none

  2. Mercury Note veins around craters, which might be lava flows induced by impact event.

  3. Radar image of Mercury with Goldstone-VLA Mercury Red areas have high radar reflectivity, due either to variations in surface composition or surface roughness. The area of high radar reflectivity at the north pole (top of image) is thought to be due to significant amounts of water ice residing in permanently-shaded areas within craters in the polar region. The other two large regions of high reflectivity have never have been imaged by spacecraft, so the cause of the high reflectivity remains a mystery.

  4. Mercury

  5. Mercury

  6. Image by Mariner 10 Venus distance from Sun = .723 AU rotation period = 243.0 days orbital period = 224.7 days orbital eccentricity = .007 orbital inclination = 7.0o axis inclination = 177.3o mass/me = .815 radius/re = .95 albedo = .65 gravity/ge = .91 number of satellites = 0 atmosphere: CO2 (97%) and N (3%)

  7. Venus

  8. Venus,Magellan image

  9. Sif Mons on Venus

  10. distance from Sun = 1 AU = 1.5x1013 cm rotation period = 1 day orbital period = 365.24 days orbital eccentricity = .017 orbital inclination = 0.0o axis inclination = 23.45o mass me = 5.98x1027 g radius re = 6.37x108 cm albedo = 0.37 gravity ge = 975 cm s-2 number of satellites = 1 atmosphere: N (80%) and O (20%) Earth, Apollo 17, December 1972

  11. Earth, IR image from GOES 6 satellite and Clementine (right)

  12. Sunrise over Moon, with planets

  13. Moon, satellite of Earth, Apollo 17 image, December 1972

  14. Earth is our home planet. Moon The uniform temperature and thermal regulation on the surface of the Earthis due to the coupling between the oceanic and atmospheric currents

  15. Far Side of the Moon

  16. distance from Sun = 1.52 AU rotation period = 1.029 days orbital period = 686.0 days orbital eccentricity = .093 orbital inclination = 1.8o axis inclination = 25.19o mass/me = .1074 radius/re = .533 albedo = .15 gravity/ge = .38 known satellites = 2 atmosphere: CO2 Mars, ground-based telescope

  17. Mars, Mariner 4 image (1965) The large channel system is Valles Marineris

  18. Mars Mars has many surface features that were formed by volcanisn, impacts, tectonics, wind, flowing water, and landslides.

  19. Mars

  20. Mars, Viking Orbiter

  21. Phobos, satellite of Mars

  22. Phobos and Deimos, satellites of Mars

  23. Asteroid Gaspra

  24. Asteroid Ida

  25. Asteroid Ida and moon Dactyl

  26. Dactyl, Moon of Ida

  27. Jupiter, HST image distance from Sun = 5.20 AU rotation period = .41 days orbital period = 11.9 yrs orbital eccentricity = .048 orbital inclination = 1.3o axis inclination = 3.12o mass/me = 317.0 radius/re = .9.4 albedo = .52 gravity/ge = 2.54 known satellites = 16 atmosphere: H, He

  28. Jupiter, Voyager image

  29. Jupiter (detail), Voyager image

  30. Io, satellite of Jupiter,Voyager image

  31. Volcano Loki on Io, Voyager image

  32. Europa, satellite of Jupiter

  33. Europa (detail), satellite of Jupiter

  34. Ganymede, satellite of Jupiter

  35. Callisto, satellite of Jupiter, Voyager image

  36. Image by Nordic Optical Telescope Saturn distance = 9.53 AU rotation period = .44 days orbital period = 29.5 days orbital eccentricity = .056 orbital inclination = 2.5o axis inclination = 26.73o mass/me = 95.18 radius/re = 9.4 albedo = .47 gravity/ge = 1.08 known satellites = 18 atmosphere: H, He

  37. Saturn, HST

  38. Saturn, Voyager image

  39. Rings of Saturn,Voyager image

  40. Mimas, satellite of Saturn Large impact crater is Herschel

  41. Large impact crater is Telemachus Tethys, satellite of Saturn

  42. Rhea, satellite of Saturn

  43. Titan, satellite of Saturn

  44. Iapetus, satellite of Saturn

  45. Enceledus, satellite of Saturn

  46. Uranus, HST WFPC2 image distance from Sun = 19.18 AU rotation period = .72 days orbital period = 84.0 yrs orbital eccentricity = .047 orbital inclination = .8o axis inclination = 97.86o mass/me = 14.53 radius/re = 4.007 albedo = .51 gravity/ge = .91 known satellites = 15 atmosphere: H and He

  47. Uranus, Voyager image

  48. Ariel, satellite of Uranus,Voyager image

  49. Neptune, HST WFPC2 image distance from Sun = 30.06 AU rotation period = .77 days orbital period = 164.8 yrs orbital eccentricity = .009 orbital inclination = 1.8o axis inclination = 29.5o mass/me = 17.14 radius/re = 3.9 albedo = .41 gravity/ge = 1.19 known satellites = 8 atmosphere: H and He

  50. Neptune, Voyager image