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National Air and Space Museum Image Detail

Oppositions of Mars

Oppositions of Mars

 

An opposition occurs when the Sun, Earth and Mars line up with the Earth in the middle. This phenomenon, which happens every two years, brings Earth and Mars relatively close together. This diagram shows four recent oppositions and two future ones. The 2003 opposition was significant because Mars was very near its perihelion - the point n its orbit where it is closest to the Sun. At that time, Mars came within 35 million miles of Earth. Mars will be almost that close again during the opposition in July of 2018.
Image Number: WEB11557-2010
Credit: National Air and Space Museum, Smithsonian Institution
For print or commercial use, please contact: Smithsonian Institution
Reproductions are not currently available. If you would like to use this image as-is, please submit a permission request.

Large JPEG (1016 x 1016 pixels)

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