Wikidata:Property proposal/lunar coordinates

lunar coordinatesEdit

Originally proposed at Wikidata:Property proposal/Place

Descriptioncoordinates of a place on Earth's Moon; selenographic coordinates
Representsselenographic coordinates (Q570069)
Data typeGeographic coordinates
Template parametercoordinates in w:Template:Infobox Lunar mare (Q7054499)
Domainlocation on Moon (Q405)
Example 1Mare Tranquillitatis (Q320936) → 8°30'N, 31°24'E
Example 2Chacornac A (Q101143586) → 29°48'N, 31°30'E
Example 3Chacornac B (Q101143513) → 29°48'N, 31°54'E
Planned use~2000 coordinates currently in P625
See also


In the discussion at Wikidata:Property proposal/planetary coordinates, we identified a series of problems with using coordinate location (P625) for places on the Moon (among other non-Earth bodies):

  • Method varies from one astronomical body (planet/satellite/asteroid/) to another
  • Wikimedia functions for maps don't all correctly check for globe and generally need custom code to "exclude" non-Earth locations.
  • Users might incorrectly assume that P625 is the only property for coordinates. However, we already have a series of separate properties for places on Earth and a group of properties for celestial coordinates
  • Wikidata Query Server has some handling of globes, notably functions have a globe parameter. However, the globe needs to be hard-coded and distance adjusted for the globe. Accordingly, queries need to be globe specific


  • Interface doesn't support setting globes
  • Current application at Commons has a problem with the inclusion of places on the Moon in coordinate location (P625)
  • Applications working with both Earth and moon coordinates on WMF sites seem rare (or inexistent)

@ArthurPSmith, Paperoastro: can you help me complete the proposal? (Add your motivation for this property here.) --- Jura 21:07, 18 November 2020 (UTC)


  •   Question I agree this is necessary, but are we going to create properties for each celestial body? NMaia (talk) 00:29, 19 November 2020 (UTC)
    • The idea is to first create this one and see how it goes, what issues we might have to solve. --- Jura 00:35, 19 November 2020 (UTC)
  •   Support Proposal looks good to me, thanks for doing it. ArthurPSmith (talk) 15:59, 19 November 2020 (UTC)
  •   Support This property will simplify queries and constraint monitoring --Paperoastro (talk) 16:37, 21 November 2020 (UTC)
@Jura1, NMaia, ArthurPSmith, Paperoastro:   Done lunar coordinates (P8981) Pamputt (talk) 23:56, 27 December 2020 (UTC)