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Image: NASA/JPL-Caltech/University of Arizona

Airy-0

Airy-0

Crater on Mars whose location defines the position of the prime meridian.

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Wikipedia views per dayLast 30 days 395

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Readers' pathsAug 2026 – Oct 2026

Readers go next to

Share of the 194 clicks on its links

  1. Viking 1

    Robotic spacecraft sent to Mars.

    19%

  2. Prime meridian

    Line of longitude, at which longitude is defined to be 0°.

    14%

  3. Sinus Meridiani

    Albedo feature on Mars.

    12%

  4. Albedo feature

    Region of a planet's surface which contrasts in brightness to its surroundings.

    8.2%

  5. Mars

    Fourth planet from the Sun.

    5.2%

Readers come from

Share of the 826 readers arriving from another article

  1. Prime meridian

    Line of longitude, at which longitude is defined to be 0°.

    72%

  2. Timekeeping on Mars

    Proposed approaches to tracking date and time on the planet Mars.

    13%

  3. Areography

    Delineation and characterization of Martian regions.

    10%