99   WZ CANIS MAJORIS   (UG)   Range: 14.5-18.3V
     Position:   07 18 49.19  -27 07 43.3 (J2000, from .dat file)
     Magnitude:  V=16.632  B-V=0.639      (Henden, single night)

ID     RA  (2000)   DEC       X    Y   N    V      ERR     B-V    ERR     

a) Comparison star sequence

1    07 18 44.3  -27 05 34   -65  129  3  11.772  0.027    1.157  0.023   
2    07 19 03.6  -27 12 49   191 -306  2  12.423  0.011    0.424  0.014   
3    07 18 58.4  -27 07 08   123   35  3  13.149  0.020    0.812  0.021   
4    07 18 50.6  -27 07 48    19   -5  3  13.609  0.016    0.552  0.019   
5    07 18 39.0  -27 08 41  -137  -58  3  14.048  0.016    0.516  0.019   
6    07 18 38.9  -27 08 18  -138  -34  3  14.489  0.044    1.634  0.073   
7    07 18 43.0  -27 07 58   -83  -15  3  15.021  0.022    1.118  0.031   
8    07 18 48.3  -27 09 01   -12  -78  3  15.477  0.037    1.000  0.054   
9    07 18 43.5  -27 08 33   -76  -50  3  15.970  0.026    0.608  0.045   
10   07 18 45.7  -27 07 41   -47    2  3  16.550  0.029    0.668  0.135   
11   07 18 49.2  -27 06 48     0   55  2  17.340  0.088    0.611  0.052   


b) Wide-colour extension for CCD calibration

     07 19 03.4  -27 02 21   190  322  3  12.015  0.011    0.251  0.013   
     07 18 50.3  -27 11 16    15 -213  3  12.416  0.006    0.261  0.012   
     07 19 06.5  -27 05 19   231  144  3  11.545  0.051    1.849  0.027   


Notes:

1. Two bright stars in this field were not measured during the photometric
determination. They both have reliable Tycho-2 magnitudes. One is the
bright star very near WZ CMa, being only 25 arcsec northwest of the
variable. It has a magnitude of V=10.60+/-0.06. The other bright star 
is near the east edge of the field and has a magnitude of V=10.28+/-0.05.

2. The magnitude shown here for WZ CMa may not be a quiescent value, but
some intermediate magnitude. Henden measured a much bluer magnitude when 
WZ CMa was at maximum, when the magnitude was measured as V=13.799+/-0.004
and B-V=0.099+/-0.005.


Bruce Sumner
15 April 1999
Revised 30 December 2000