The Sixth Fundamental Catalogue (FK6)

Parts I and III of the sixth fundamental catalog, a catalog of high-precision astrometry for bright stars combining centuries of ground-based observations as reflected in FK5 with HIPPARCOS astrometry. The result contains, in particular for the proper motions, statistically significant improvements of the Hipparcos data und represents a system of unprecedented accuracy for these 4150 fundamental stars. The typical mean error in pm is 0.35 mas/year for 878 basic stars, and 0.59 mas/year for the sample of the 3272 additional stars.
FK6 number of the star (it is identical with its FK5 or FK4sup number)
Coordinates (as h m s, d m s or decimal degrees), or SIMBAD-resolvable object
Search radius in arcminutes
Flag for astrometrically excellent stars, larger numbers are better (3 is best)
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Limit to items.

The Data Center is currently running in emergency mode after our database server failed catastrophically (see our blog for infos and updates).

This means, in particular, that services built on top of large tables may currently be broken. Since our replacement server is much slower than our usual machine, restoring them will take quite some time.

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