213 3c66A (QSO) Range: Position: 02 22 39.61 +43 02 08.1 (J2000, from .dat file) Magnitude: V=14.762 B-V=0.469 (.dat file, single night) ID RA (2000) DEC X Y N V ERR B-V ERR a) Comparison star sequence 1 02 22 13.9 +43 00 02 -282 -126 1 11.400 0.001 0.707 0.001 2 02 23 03.3 +43 00 21 260 -107 1 11.783 0.001 0.421 0.001 3 02 22 53.5 +42 58 15 152 -233 1 12.193 0.001 1.053 0.003 4 02 22 25.6 +43 04 09 -154 121 1 12.856 0.003 0.832 0.005 5 02 22 44.0 +43 05 29 48 201 1 13.639 0.005 0.472 0.008 6 02 22 30.8 +43 03 14 -96 66 1 14.182 0.008 1.045 0.017 7 02 22 46.6 +42 58 49 77 -199 1 14.424 0.010 1.007 0.021 8 02 22 45.1 +43 04 20 61 132 1 14.771 0.014 1.035 0.030 9 02 22 24.3 +43 01 27 -168 -41 1 15.308 0.023 0.994 0.047 10 02 22 47.2 +43 02 11 84 3 1 15.872 0.038 0.508 0.057 11 02 22 35.3 +43 02 56 -47 48 1 16.520 0.069 0.711 0.120 12 02 22 43.4 +43 00 22 42 -106 1 17.005 0.111 0.452 0.169 b) Wide-colour extension for CCD calibration 02 22 55.1 +43 03 15 170 67 1 12.819 0.002 0.185 0.003 02 22 19.2 +43 06 06 -224 238 1 14.215 0.008 1.216 0.021 Notes: Bruce Sumner 30 March 2001