[uf-discuss] Proposal: Lunar/ Mars co-ordinates (like "geo")

[Kevin Marks]

On Sep 18, 2006, at 1:23 PM, Andy Mabbett wrote:
>> - do we really need a /different/ microformat for every body being
>> described? is there a way to add a third value for type (or body, or
>> something more appropriate) to geo without breaking exiting spec /
>> rules or muddying things up too much?
>
> I did consider that, but I'm not sure how one could attach the extra
> attribute, I also considered "geo-luna" and "geo-mars"; but the meaning
> of "geo" is "(planet) Earth", so it's not really appropriate.

How about adding a container around the geo that specifies the planet 
(or geoid, if you want to get extra fussy. You can say it defaults to 
WSGS-84, which is backwards compatible).

That way you can specify the planet once for a series of co-ordinates. 
What you do for  highly non-spherical bodies can be deferred, as after 
all the IAU now insists that planets are spherical...