<D <M <Y
Y> M> D>

[Comments] (1) : Sorry, I got nothing. Sometimes I post these big synthesizing entries but other times I look at the primary sources and nothing happens.

Oh, when I was pitting Google Sky against Microsoft Visual Telescope 2008 or whatever it's called, I forgot the much older indie competitor, WikiSky (still not a drink).


Unless otherwise noted, all content licensed by Leonard Richardson
under a Creative Commons License.