121 FBS 1735+825 (CV?) Range: 14.0B Position: 17 29 34 +82 26 47 (J2000, from FBS precessed) Magnitude: unknown ID RA (2000) DEC X Y N V ERR B-V ERR a) Comparison star sequence 1 17 29 21.6 +82 30 45 -24 238 4 13.171 0.020 0.632 0.008 2 17 31 14.3 +82 24 05 199 -162 4 13.548 0.017 0.854 0.011 3 17 28 37.0 +82 24 59 -113 -108 4 14.136 0.018 1.135 0.008 4 17 29 47.0 +82 25 10 26 -97 4 14.872 0.019 0.954 0.009 5 17 29 24.9 +82 29 46 -18 179 4 15.556 0.010 0.681 0.012 6 17 29 27.2 +82 25 23 -13 -84 4 16.047 0.022 0.728 0.014 7 17 30 46.9 +82 28 33 143 106 4 16.232 0.018 0.756 0.008 8 17 28 33.4 +82 26 21 -120 -26 4 16.531 0.014 0.950 0.026 9 17 29 44.7 +82 28 25 21 98 4 17.425 0.014 0.984 0.060 10 17 30 12.5 +82 24 54 76 -113 4 18.359 0.049 0.778 0.073 b) Wide-colour extension for CCD calibration 17 29 50.8 +82 24 27 33 -140 4 13.350 0.017 0.543 0.007 17 31 29.7 +82 26 32 228 -15 4 15.971 0.027 1.454 0.016 Notes: 1. The position of this potential UG variable has not been identified. The offsets given here are relative to the nominal position quoted in FBS (First Byurakan Spectral Sky Survey). 2. An examination of fourteen images of pixel data from the US Naval Observatory Precision Measuring Machine of images obtained between 1953 and 1997 showed no image down to magnitude 20 in the region of this suspected dwarf nova. 3. There is a bright star in the northwest corner of this field that was not measured as part of this sequence. This star has an accurate Tycho-2 magnitude of V=9.56+/-0.03. Bruce Sumner 11 June 1999 Revised 14 December 2000