APFS Simple Query Form

This service computes apparent places of certain fundamental stars (from the FK6 catalogue). The positions can be given either in the CIO system (default) or the old equinox system.

If you give a position or an object resolvable by Simbad, the service will choose the nearest FK6 star for the ephemeris.

Enter an FK6 number here, or a (decimal, comma-seperated) position, or simbad identifier to use the closest FK6 star.
/ / (day/month/year)
Start date of generated ephemeris
/ / (day/month/year)
End date of generated ephemeris
Number of hours between two apparent positions