118 CW MONOCEROTIS (UGSS) Range: 11.9-16.5V Position: 06 36 54.59 +00 02 17.4 (J2000, from .dat file) Magnitude: V=16.468 B-V=0.173 (in .dat file) ID RA (2000) DEC X Y N V ERR B-V ERR a) Comparison star sequence 1 06 37 11.9 +00 05 42 259 205 3 10.883 0.210 0.985 0.191 2 06 37 02.3 -00 00 12 116 -149 3 11.629 0.307 0.414 0.104 3 06 36 52.1 +00 02 10 -37 -7 3 11.953 0.234 0.541 0.127 4 06 37 01.0 +00 08 28 95 371 3 12.542 0.090 0.503 0.027 5 06 36 47.9 +00 01 30 -100 -47 3 12.708 0.054 1.267 0.033 6 06 36 58.1 +00 01 48 53 -29 3 12.803 0.043 0.590 0.039 7 06 36 58.4 +00 05 35 57 198 3 13.320 0.025 0.484 0.060 8 06 37 02.3 +00 05 12 116 175 3 13.747 0.028 0.758 0.057 9 06 36 50.3 +00 04 03 -64 106 3 13.902 0.033 1.602 0.058 10 06 36 44.7 +00 03 06 -148 49 3 14.367 0.031 0.774 0.065 11 06 36 49.3 +00 05 21 -79 184 3 14.731 0.029 0.774 0.065 12 06 37 05.9 +00 01 14 169 -63 3 14.887 0.031 1.050 0.062 13 06 36 51.9 +00 01 44 -41 -33 3 15.312 0.031 1.513 0.055 14 06 36 50.6 +00 02 28 -60 11 3 15.636 0.031 0.898 0.069 15 06 36 49.6 +00 01 19 -76 -58 3 15.838 0.038 1.017 0.068 16 06 36 59.5 +00 02 56 73 39 3 15.942 0.029 1.794 0.050 17 06 36 54.9 +00 03 58 4 101 3 16.177 0.042 1.931 0.058 18 06 36 59.8 +00 02 32 78 15 3 16.729 0.057 1.898 0.089 19 06 36 57.8 +00 01 30 49 -47 3 17.050 0.044 1.292 0.020 20 06 36 56.9 +00 01 11 35 -66 3 17.101 0.061 1.205 0.061 b) Wide-colour extension for CCD calibration 06 36 49.9 -00 02 04 -70 -261 2 17.363 0.717 0.338 0.118 06 36 38.7 +00 00 28 -238 -109 3 14.599 0.040 2.336 0.053 06 36 40.4 -00 01 36 -214 -233 3 15.744 0.032 2.417 0.050 Notes: 1. The first three magnitudes are saturated, and are only accurate to about 0.2 or 0.3 magnitude. For these comparison stars the AAVSO PEP(V) magnitudes shown below should be used in preference to those given here. 2. The AAVSO 'f' chart for this variable dated 3/1992 contains the following magnitudes. The AAVSO magnitudes 13.9 and brighter are photoelectric measures, whereas the five fainter AAVSO measures are photovisual and appear to originate from the 1966 AAVSO chart for this variable. In addition there is a VSS RASNZ chart also available, dated 06/1976, which contains magnitudes. And Misselt (PASP,108,1996) measured six stars that are in common to both sequences. ID Henden AAVSO RASNZ Misselt 1 10.883 10.3 2 11.629 11.4 11.4 3 11.953 11.8 11.9 11.791 5 12.708 12.6 12.6 12.694 6 12.803 12.8 12.7 12.809 8 13.747 13.6 13.4 9 13.902 13.9 13.6 12 14.887 14.3 13 15.312 14.5 14.7 15.358 14 15.636 15.0 15.0 15.689 16 15.942 15.901 19 17.050 16.0 16.0 20 17.101 16.1 16.1 4. CW Mon appears to be fairly constant at minimum at about V=16.5 Bruce Sumner Revised 6 June 1999