Planetary Photojournal

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Planetary Photojournal
Mother Earth Gaia
Father Heaven Uranus
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Chronos Saturn

Zeus Jupiter
Hera Juno
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Poseiden Neptune


Hades Pluto
Ares Mars
Hestia Vesta
Athena Minerva
Apollo
Aphrodite Venus
Hephaestus Vulcan
Hermes Mercury
Moon
Asteroids
Comets
Artemis Diana
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Mercury
Image by Mariner 4, 29 March 1974
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
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Mercury

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

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Mercury
Radar image of Mercury with Goldstone-VLA

• 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.

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Mercury
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Venus
Image by Mariner 10
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)
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Venus
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Venus,Magellan image
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Sif Mons on Venus
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Earth, Apollo 17, December 1972
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)
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Earth, IR image from GOES 6 satellite and
Clementine (right)
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Moon, Apollo 17 image, December 1972
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Moon
Earth is our home planet.

• The uniform temperature and thermal regulation on
  the surface of the Earth is due to the coupling
  between the oceanic and atmospheric currents

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Far Side of the Moon
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Mars, ground-based telescope
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
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Mars, Mariner 4 image (1965)
The large channel system is Valles Marineris
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Mars
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Mars, Viking Orbiter
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Phobos, satellite of Mars
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Phobos and Deimos, satellites of Mars
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Asteroid Gaspra
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Asteroid Ida
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Asteroid Ida and moon Dactyl
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Dactyl, Moon of Ida
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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
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Jupiter, Voyager image
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Jupiter (detail), Voyager image
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Io, satellite of Jupiter,Voyager image
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Volcano Loki on Io, Voyager image
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Europa, satellite of Jupiter
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Europa (detail), satellite of Jupiter
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Ganymede, satellite of Jupiter
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Callisto, satellite of Jupiter, Voyager image
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Saturn
Image by Nordic Optical Telescope
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
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Saturn, HST
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Saturn, Voyager image
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Rings of Saturn, Voyager image
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Mimas, satellite of Saturn
Large impact crater is Herschel
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Tethys, satellite of Saturn
Large impact crater is Telemachus
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Rhea, satellite of Saturn
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Titan, satellite of Saturn
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Iapetus, satellite of Saturn
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Enceledus, satellite of Saturn
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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
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Uranus, Voyager image
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Ariel, satellite of Uranus, Voyager image
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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
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Neptune, Voyager image
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Triton, Satellite of Neptune,Voyager image
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Pluto and satellite Charon, ground-based
distance from Sun 39.44 AU rotation period
6.38days orbital period 247.7 yr orbital
eccentricity .25 orbital inclination
17.2o axis inclination 122.46o mass/me
.002 radius/re .18 albedo .50 gravity/ge
.05 known satellites 2 atmosphere N, CH4
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Pluto and satellite Charon, HST
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Comet West
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Comet Halley