The HTML markup produced by this template emits an Geo microformat, which makes the location's coordinates (latitude & longitude) parsable, so that they can be, say, looked up on a map. As yet, the standard for doing this for off-world bodies is still under development, but is supported in some microformat parsers (e.g. Swignition). For more information about the use of microformats on Wikipedia, please see the microformat project.
Geo is usually produced by calling {{coord}}, and uses HTML classes:
Please do not rename or remove these classes.
When giving coordinates, please don't be overly precise.