Unfortunately I don't think there's any structured way to determine which planet an article applies to. Broadly speaking, Wikipedia geotagging is inconsistent a

Unfortunately I don't think there's any structured way to determine which planet an article applies to. Broadly speaking, Wikipedia geotagging is inconsistent and the data quality is fairly poor. I think a lot of that is because it's surprisingly difficult to make a viewer like this, so few people have. That makes the data quality issues nonobvious. Wikidata offers the promise of more structured data, but I know my husband experimented with it and decided not to use it. I think the problem was that mapping Wikidata objects to Wikipedia articles was too difficult (there is a structured way to do this but in practice very few articles have the annotation).