2 wks Back to the Solar System Index MERCURY also see Useful Links: Solar System: Mercury Position order from the Sun: 1st planet Distance from the Sun (on average): 36,000,000 miles Period of Revolution around the Sun (1 planetary year): 87.9 Earth days Period of Rotation on its axis (1 planetary day): 58.7 Earth days Diameter: 3,031 miles 2nd smallest planet About 1/3 the size of Earth Temperature range: - 270 F to 800 F Atmosphere: essentially none Number of Moons: none Spacecraft Visits: Mariner 10 Back to the Solar System Index VENUS also see Useful Links: Solar System: Venus Position order from the Sun: 2nd planet Distance from the Sun (on average): 67,230,000 miles Period of Revolution around the Sun (1 planetary year): 224.7 Earth days Period of Rotation on its axis (1 planetary day): 243 Earth days Diameter: 7,521 miles slightly smaller than Earth Temperature (average): 870 F the hottest planet Atmosphere: &gt; Covered with fast-moving (220 mph) sulfuric acid clouds, acid rain &gt; Extremely high, bone-crushing pressure &gt; Venus greenhouse effect traps all hit on the surface Number of Moons: none Spacecraft Visits: Mariner 2, Pioneer Venus and the Soviet s Venera 7 &amp; 9 Back to the Solar System Index EARTH also see Useful Links: Solar System: Earth Position order from the Sun: 3rd planet Distance from the Sun (on average): 93,000,000 miles = 1 Astronomical Unit (AU) Period of Revolution around the Sun (1 planetary year): 365.26 Earth days Period of Rotation on its axis (1 planetary day): 23.93 Earth hours Diameter: 7,926 miles 5th largest planet Temperature range: - 127 F to + 136 F Atmosphere: 78% nitrogen, 21% oxygen, 0.9% argon, 0.03% carbon dioxide Number of Moons: 1 about 1/4 the size of Earth Spacecraft Visits: Miscellaneous: &gt; Earth s circumference is approximately 24,900 miles &gt; The speed of the Earth s surface around its axis is approximately 1,040 mph Back to the Solar System Index EARTH's MOON also see Useful Links: Solar System: Moon Distance from the Earth: 238,900 miles Revolution around the Earth: 27 days, 8 hours Period of Rotation on its axis (1 planetary day): none - no rotation Diameter: 2,140 miles Temperature range: - 170 F to + 265 F Atmosphere: none Back to the Solar System Index MARS also see Useful Links: Solar System: Mars Position order from the Sun: 4th planet Distance from the Sun (on average): 141,600,000 miles Period of Revolution around the Sun (1 planetary year): 687 Earth days Period of Rotation on its axis (1 planetary day): 24.6 Earth hours Diameter: 4,222 miles (about half the size of Earth) Temperature range: - 220 F to + 68 F Atmosphere: Very thin made of 95% carbon dioxide Number of Moons: 2 tiny moons Phobos and Deimos Spacecraft Visits: Mariner 4, Viking, Global Surveyor, Mars Pathfinder Back to the Solar System Index JUPITER also see Useful Links: Solar System: Jupiter Position order from the Sun: 5th planet Distance from the Sun (on average): 480,000,000 miles Period of Revolution around the Sun (1 planetary year): 11.9 Earth years Period of Rotation on its axis (1 planetary day): 9.8 Earth hours Diameter: 88,700 miles the largest planet Temperature: - 244 F Atmosphere: Very thick gaseous, 90% hydrogen and 10% helium Number of Moons: &gt; 4 large - Io, Europa, Ganymede and Callisto &gt; 12 small - Metis, Adrastea, Amalthea, Thebe, Leda, Himalia, Lysithea, Elara, Ananke, Carme, Pasiphae and Sinope Spacecraft Visits: Pioneer 10 &amp; 11, Voyager 1 &amp; 2, Ulysses, Galileo Miscellaneous: &gt; 5 th 11 times larger than the Earthlargest planet in our solar system &gt; All of the other planets could fit inside of it &gt; It is the 3 rd brightest object in the sky (after the Moon &amp; Venus) &gt; One Great Red Spot which is a huge hurricane type storm (17,000 miles wide) &gt; Jupiter has faint, dark, narrow rings made of tiny rock fragments and dust &gt; Jupiter s set of rings are about 29,000 miles wide and 12,400 miles thick &gt; Jupiter has a number of different direction &amp; width wind bands around it Back to the Solar System Index SATURN also see Useful Links: Solar System: Saturn .
(7,926 miles; also see; Useful Links) (faint, dark, narrow rings; made; of tiny rock fragments and dust &gt) (width wind bands around it; also see; Useful Links; T:Back to the Solar System Index SATURN) (Jupiter; has; a number of different direction &amp) Context(Jupiter has,List([3963, 3974))):(Jupiter; s; set of rings) Context(Jupiter s Jupiter has,List([3884, 3974))):(Jupiter; has; faint, dark, narrow rings made of tiny rock fragments and dust &gt) Context(Jupiter has,List([3963, 3974))):(Jupiter has faint, dark, narrow rings made of tiny rock fragments and dust &gt; Jupiter s set of rings; are; about 29,000 miles wide and 12,400 miles thick &gt) (It; is; the 3) Context(It is,List([3646, 3651))):(Very thin; made; ) Context(Very thin made It is,List([2643, 3651))):(All of the other planets; could fit; L:inside) Context(Very thin made All of the other planets could fit It is,List([2643, 3651))):(Viking, Global Surveyor; Back also see; Useful Links: Solar System: Jupiter Position order from the Sun: 5th planet Distance from the Sun (on average) Context(Very thin made Viking , Global Surveyor Back also see All of the other planets could fit It is,List([2643, 3651))):(2 tiny moons Phobos and Deimos Spacecraft; Visits; ) Context(Very thin made Viking , Global Surveyor Back also see All of the other planets could fit It is,List([2643, 3651))):(small - Metis, Adrastea, Amalthea, Thebe, Leda, Himalia, Lysithea, Elara, Ananke, Carme, Pasiphae and Sinope Spacecraft; Visits; ) Context(Very thin made It is,List([2643, 3651))):(none Back to the Solar System Index MARS; also see; Useful Links: Solar System: Mars Position order from the Sun: 4th planet Distance from the Sun (on average): 141,600,000 miles Period of Revolution around the Sun (1 planetary year): 687 Earth days Period of Rotation on its axis) (The speed of the Earth s surface around its axis; is; approximately 1,040 mph Back to the Solar System Index EARTH's MOON) Context(The speed of the Earth s surface around its axis is,List([1838, 1889))):(circumference; is; approximately 24,900 miles &gt) (One Great Red Spot; is; a huge hurricane type storm (17,000 miles wide) &gt)
Jupiter has,List([3963, 3974)) Jupiter s Jupiter has,List([3884, 3974)) Jupiter has,List([3963, 3974)) It is,List([3646, 3651)) Very thin made It is,List([2643, 3651)) Very thin made All of the other planets could fit It is,List([2643, 3651)) Very thin made Viking , Global Surveyor Back also see All of the other planets could fit It is,List([2643, 3651)) Very thin made Viking , Global Surveyor Back also see All of the other planets could fit It is,List([2643, 3651)) Very thin made It is,List([2643, 3651)) The speed of the Earth s surface around its axis is,List([1838, 1889))
7,926 miles faint, dark, narrow rings width wind bands around it Jupiter Jupiter Jupiter Jupiter has faint, dark, narrow rings made of tiny rock fragments and dust &gt It Very thin All of the other planets Viking, Global Surveyor 2 tiny moons Phobos and Deimos Spacecraft small - Metis, Adrastea, Amalthea, Thebe, Leda, Himalia, Lysithea, Elara, Ananke, Carme, Pasiphae and Sinope Spacecraft none Back to the Solar System Index MARS The speed of the Earth s surface around its axis circumference One Great Red Spot
also see made also see has s has Jupiter s set of rings is made could fit Back also see Visits Visits also see is is is
Useful Links
of tiny rock fragments and dust &gt
Useful Links T:Back to the Solar System Index SATURN
a number of different direction &amp
set of rings
faint, dark, narrow rings made of tiny rock fragments and dust &gt
are about 29,000 miles wide and 12,400 miles thick &gt
the 3
L:inside
Useful Links: Solar System: Jupiter Position order from the Sun: 5th planet Distance from the Sun (on average
Useful Links: Solar System: Mars Position order from the Sun: 4th planet Distance from the Sun (on average): 141,600,000 miles Period of Revolution around the Sun (1 planetary year): 687 Earth days Period of Rotation on its axis
approximately 1,040 mph Back to the Solar System Index EARTH's MOON
approximately 24,900 miles &gt
a huge hurricane type storm (17,000 miles wide) &gt