HR4550 (aka. Groombridge 1830)...
Oh well I misread this map, I thought you had to determine distance by
projecting down into the circled plane. No, apparently this is a 3D
projection. I should have looked at the table at the end....
http://www.atlasoftheuniverse.com/50lys.html
So I'm stuck with Sirius... Maybe Smit in on a space platform orbiting
Sirius... :-)
Dave