The Gazetteer of Planetary Nomenclature provides detailed information about planetary names approved by the International Astronomical Union. Find out more about the history of planetary nomenclature, how names are approved, how to propose a name, and more by exploring the pages from the navigation menu. Explore approved planetary names on each planet by clicking on the icons above.

Nomenclature News

  • Name Approved for Mars: Deuteronilus Cavus

    The IAU Working Group for Planetary System Nomenclature has approved the name Deuteronilus Cavus for a feature on Mars. For more information, please see the MC-05 map in the Gazetteer of Planetary Nomenclature

    • New
    • Mars
  • Names Approved for Didymos and Dimorphos

    The IAU Working Group for Planetary System Nomenclature has approved six new names for Dimorphos and two new names for Didymos. The new Dimorphos names are Tamboril, Naqqara, Msondo, Bongo, Marimba, and Bala. The new Didymos names are Gong Saxum and Carillon Saxum. For more information, please see the Dimorphos map and the Didymos map in the Gazetteer of Planetary Nomenclature

    • Dimorphos
  • Two Names Approved for Pluto: Belton Regio and Safronov Regio

    The IAU Working Group for Planetary System Nomenclature has approved two new feature names for Pluto: Belton Regio and Safronov Regio. For more information, please see the Pluto nomenclature map in the Gazetteer of Planetary Nomenclature

    • Pluto
  • New Name for Europa Feature: Pasiphae Linea

    The IAU Working Group for Planetary System Nomenclature has approved the name Pasiphae Linea for a feature on Europa

    • Europa
  • Io Eruptive Center Shen Yi Renamed Xihe

    The IAU Working Group for Planetary System Nomenclature has renamed an eruptive center on Io. In response to public comment, the name Shen Yi has been dropped, and the feature given a new name, Xihe

    • Io
  • Name Approved for Mars Crater: Picardi

    The IAU Working Group for Planetary System Nomenclature has approved the name Picardi for a large crater on Mars. For more information, please see the feature name page and the MC-16 quad map in the Gazetteer of Planetary Nomenclature

    • Mars