, 19 June 2012 (UTC) 
 :::::Protoplanetary and a bit more advanced, with some young planets  see exoplanet hunting. There's only a few I've read about (from somewhat advanced systems), but there's the promise of finding more with the new IR scopes, and from more advanced discs. The K-cliff seems to make a fairly clear boundary of the Sun's evolved accretion disc. Anyway, that's just one potential number for the box. Without several more added to the above, I don't think the infobox is desirable. What other properties are there? Which do we have actual measurements for? And which aren't just a property of the sun alone?   16:40