277 DV DRACONIS (UGWZ:) Range: 15.0-<21p Position: 18 17 24.74 +50 48 19.9 (J2000, from .dat file) Magnitude: V=19.030 B-V=0.305 (Henden, single night) ID RA (2000) DEC X Y N V ERR B-V ERR a) Comparison star sequence 1 18 17 20.0 +50 48 13 -45 -7 1 11.625 0.001 0.814 0.001 2 18 17 15.7 +50 53 18 -85 298 1 11.841 0.001 1.094 0.001 3 18 17 38.5 +50 44 23 131 -238 1 12.496 0.001 0.545 0.001 4 18 17 29.6 +50 46 01 47 -139 1 12.796 0.001 0.977 0.001 5 18 17 28.9 +50 43 23 40 -297 1 13.238 0.001 0.617 0.001 6 18 17 11.6 +50 45 46 -125 -154 1 13.666 0.002 0.671 0.003 7 18 16 56.1 +50 52 39 -271 259 1 13.807 0.002 0.496 0.003 8 18 17 35.8 +50 46 31 105 -109 1 14.167 0.002 0.683 0.004 9 18 17 01.1 +50 49 32 -224 72 1 14.698 0.003 0.743 0.006 10 18 17 18.2 +50 49 39 -61 79 1 15.005 0.004 1.040 0.008 11 18 17 28.8 +50 47 45 39 -35 1 15.530 0.006 0.813 0.012 12 18 17 09.3 +50 48 58 -146 38 1 16.054 0.010 0.610 0.016 13 18 17 34.2 +50 48 22 90 2 1 16.770 0.017 0.627 0.030 14 18 17 22.3 +50 49 32 -22 72 1 17.718 0.041 0.921 0.110 15 18 17 29.3 +50 48 48 44 28 1 18.846 0.154 1.253 0.415 b) Wide-colour extension for CCD calibration 18 17 13.5 +50 51 08 -106 168 1 14.212 0.002 0.271 0.003 18 17 11.1 +50 53 06 -129 286 1 14.869 0.004 0.439 0.006 18 17 42.7 +50 48 06 170 -14 1 14.324 0.002 1.046 0.004 Notes: 1. This preliminary sequence is expected to have errors of +/-0.02 mag. 2. There are two additional bright stars on the edge of this field, one at 18h 18m 15.8s +50d 50' 27" with an accurate Tycho-2 magnitude of 10.04+/-0.03 and another at 18h 17m 59.8s +50d 49' 03" with an accurate Tycho-2 magnitude of 10.53+/-0.05. Bruce Sumner 5 April 2002