Thanks for that info, Lyman. It seems that a year on Neptune is worth about 165 of our years-- I think that means it's been about a Neptune year since earthlings discovered Neptune's existence in 1846!
To go back briefly to Gene's original concern, I think this refers to how we list distances on certificates-- but I did take the liberty of advising one of my measurers that "_____ 5 km" would be preferable to "_____ 5km" (as name of course on map). Maybe that is a little hypocritical because we're unlikely to convince race sponsors and organizers to stop using "5K" etc. Any thoughts?