Mercury Facts and Figures - Facts and Figures - MSN Encarta

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Mercury Facts and Figures

from

Encarta

Equatorial radius

2,440 km

Equatorial inclination

0.01°

Mass

3.30×10²³ kg

Average density

5.4 g/cm³

Rotational period

58.6 days

Orbital period

0.2408 years

Average distance from the Sun

57.91 million km

Perihelion

46 million km

Aphelion

69.82 million km

Orbital eccentricity

0.206

Orbital inclination

7°

Moons

0

Mercury

Mercury

Source

© 2008 Microsoft