select Centroid.STY as Longitude,
Centroid.STX as Latidude
from
(    select Shape.STCentroid() as Centroid
     from gis.USA_10_CENSUS_TRACT
)U

-1125114.67826638   -2502243.88901991
-1054751.90111223   -2514282.59232887
-1048731.88354633   -2500496.88304733
-1046266.95217362   -2499166.70651986

34.54270600 -112.46910900
33.37959400 -111.76312100
31.64200000 -110.33700000
33.75689700 -111.99271000