[Tagging] telescope types ... more type nonsense

[Warin]

Hi,

I have made changes to 
https://wiki.openstreetmap.org/wiki/Key:telescope:type

This again it a 'type' key that means???

I have taken it to be "broadly categorise the spectrum that the telescope sense".

Other problems ..

Solar telescope ... a special kind of optical telescope .. should this have its own entry?

I don't think so .. radio telescopes have a wide variety that show similar specialities, yet OSM does not distinguish between them here.