Documents NVOSS 2008 Santa Fe1 Space Time Coordinates Gretchen Greene (many thanks to Arnold Rots) T HE US N.....

Slide 1NVOSS 2008 Santa Fe1 Space Time Coordinates Gretchen Greene (many thanks to Arnold Rots) T HE US N ATIONAL V IRTUAL O BSERVATORY Sept 2008 Slide 2 NVOSS 2008 Santa…