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Table C.1.
All-sky mean UBV magnitudes of the comparison and check stars for QZ Car used by different observers in their differential photometries.
| HD | V | B | U | B − V | U − B | Spectral | Source |
|---|---|---|---|---|---|---|---|
| (mag) | (mag) | (mag) | (mag) | (mag) | type | ||
| 92740 | 6.391 | 6.482 | 5.683 | +0.091 | −0.799 | WN 7 | Mayer et al. (2010) |
| 93741 | 7.23 | 7.22 | – | −0.01 | blue | B1 II | Cousins & Stoy (1962) |
| 93131 | 6.50 | 6.47 | 5.67 | −0.03 | −0.80 | WN 6 | Walker & Marino (1972) |
| 93131 | 6.496 | 6.454 | 5.572 | −0.042 | −0.882 | WN 6 | Walker 2019 |
| 93131 | 6.488 | 6.477 | – | −0.011 | – | WN 6 | Blackford et al. (2020) |
| 93131 | 6.484 | 6.455 | 5.546 | −0.029 | −0.909 | WN 6 | Mayer et al. (2010) |
| 93131 | 6.478 | 6.448 | – | −0.030 | – | WN 6 | Bohlsen Mirranook |
| 93222 | 8.101 | 8.166 | 7.255 | +0.065 | −0.911 | O7 V | Zasche SAAO |
| 93222 | 8.11 | 8.16 | – | +0.05 | – | O7 V | Bohlsen Mirranook |
| 93403 | 7.265 | 7.031 | – | +0.234 | – | O5.5 III | Blackford et al. (2020) |
| 93683 | 7.889 | 7.761 | – | +0.128 | – | B1e | Blackford et al. (2020) |
| 93695 | 6.468 | 6.343 | 5.722 | −0.125 | −0.621 | B5 V | Mayer et al. (2010) |
| 93695 | 6.427 | 6.306 | – | −0.121 | – | B5 V | Blackford et al. (2020) |
| 93695 | 6.49 | 6.38 | 5.76 | −0.11 | −0.62 | B5 V | Christie 2019 |
| 93695 | 6.47 | 6.34 | – | −0.13 | – | B5 V | Bohlsen Mirranook |
| 93843 | 7.311 | 7.290 | – | −0.021 | – | O5 III | Blackford et al. (2020) |
| 305536 | 8.94 | 8.94 | – | +0.00 | – | O9.5 V | Bohlsen Mirranook |
Notes. Standard values, which we adopt here, are highlighted with a blue colour. HD 93683 = V736 Car was reported to be a 17.8 d eclipsing binary.
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