Mercury
The planet nearest to the sun in our solar system.
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Equatorial diameter | 4878000 | m | Clip |
Average Density | 5420 | kgm-3 | Clip |
Axial tilt | 2 | degrees | Clip |
Rotational period | 58.65 | hours | Clip |
Average surface temperature | -170 to 430 | °C | Clip |
Maximum apparent magnitude | -1.4 | Clip | |
Aphelion | 69700000000 | m | Clip |
Perihelion | 45900000000 | m | Clip |
Orbital tilt | 7 | degrees | Clip |
Orbital period | 87.97d | y=Earth year, d=Earth day | Clip |

See also: Earth, Jupiter, Mars, Neptune, Pluto, Saturn, Solar System, Sun, Uranus, Venus.
- Weblinks:
- NASA Photographic Library Photographs from NASA available for viewing and download.
- The Nine Planets A Multimedia Tour of the Solar System: one star, eight planets, and more.