MERCURY

Facts about Mercury

Distance from the Sun:
Diameter:
Rotation period:
Revolution period:
Density (Water=1):
Mass:
Mass (Earth=1):
Volume (Earth=1):
Gravity (Earth=1):
Mean Temperature:
Maximum Temperature:
Minimum Temperature:
Geometric Albedo*:
Apparent Magnitude (Vo):
Axis Tilt:
Orbital Inclination:
Orbital Speed:
Equatorial Escape Veocitiy:
Moons:
Rings:
Atmosphere:
 35.9 million miles (.38 AU)
3031 miles (4878 km)
59 days
88 days
5.42
3.3 x 10^23 kg
0.055
0.06
0.38
452 K (354 F)
700 K (800 F)
100 K (-280 F)
0.12
-1.9
0 degrees
7 degrees
48 kmps (30 miles/sec)
4.25 kmps (2.6 miles/sec)
none
none
42% Helium
42% Sodium
15% Oxygen
1% Other

* fraction of sunlight reflected

More Info about Mercury

Links to other Mercury pages

Mercury [lanl.gov]

Mercury [NASA]

Mercury [Nine Planets]

NSSDC Photo Gallery: Mercury

RPIF- Mercury

Pictures

Mythology

Mercury was the Roman counterpart to the Greek god Hermes, the messenger of the gods. Hermes is often depicted wearing winged sandals, which allowed him to move with amazing speed through the skies towards whatever destination he had chosen. He was the son of Zeus and the nymph Maia, and he was also the greatest mischief-maker among the gods. Much like the god after it was named, the planet Mercury speeds around the sun once every 88 days. Mercury is also the name of an element used to measure heat, and the element's properties have earned it the nickname "quicksilver". Thus, the name Mercury is synonymous with speed.

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