4 Results

The resulting optical positions with respect to the Hipparcos frame, and therefore in the system of the ICRS, are given in Table 2. The first column gives the IAU designation of the sources, the second and fourth columns their right ascensions and declinations, and the third and fifth columns their corresponding total internal errors. The positions based on CCD observations made at CTIO are identified as CT in the Remarks column; those based on CCD observations made at LCO as LC. The positions derived from direct photography are identified as Phot.