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Table 1.
Photometric V-band time series analyzed in this paper.
| N |  |
 |
V | STD | Observatory/mission | Reference | Label |
|---|---|---|---|---|---|---|---|
| (mag) | (mag) | ||||||
| 1069 | 16324.648 | 30914.357 | 8.981 | 0.275 | Engelhardt (Kazan, Russia) | Martynov (1950) | A |
| 123 | 18610.547 | 19707.554 | 8.864 | 0.217 | Harvard (USA) | Wendell (1913) | B |
| 70 | 22953.410 | 23543.310 | 9.088 | 0.214 | Babelsberg (Germany) | Haas (1924) | C |
| 389 | 39822.430 | 43554.240 | 8.971 | 0.204 | Tartu (Estonian) | Kalv (1979) | D |
| 39 | 42403.486 | 42831.446 | 8.974 | 0.199 | Skalnaté Plezo (Slovakia) | Kříž et al. (1980) | E |
| 33 | 42603.545 | 43420.501 | 8.930 | 0.162 | Hvar (Croatia) | Kříž et al. (1980) | F |
| 166 | 42627.480 | 43891.327 | 8.993 | 0.194 | GAISh (Crimea) | Martynov et al. (1980) | G |
| 33 | 43097.313 | 43903.254 | 8.921 | 0.180 | Abastumani (Georgia) | Martynov et al. (1980) | H |
| 336 | 43561.340 | 45670.585 | 9.034 | 0.222 | Abastumani (Georgia) | Kumsiashvili, priv. comm. | I |
| 40 | 44137.290 | 46006.340 | 8.933 | 0.164 | GAISh (Crimea) | Martynov et al. (1987) | J |
| 156 | 44137.290 | 46346.382 | 8.982 | 0.224 | GAISh (Crimea) | Martynov, priv. comm. | K |
| 82 | 44175.421 | 46056.319 | 8.919 | 0.183 | Abastumani (Georgia) | Martynov et al. (1987) | L |
| 21 | 46438.238 | 46478.172 | 8.981 | 0.141 | Tien-Shan (Kazajstan) | Martynov et al. (1987) | M |
| 1106 | 46438.238 | 46478.282 | 9.010 | 0.151 | Tien-Shan (Kazajstan) | Todorova, priv. comm. | N |
| 231 | 47874.473 | 49043.847 | 8.999 | 0.186 | HIPPARCOS | Perryman et al. (1997) | O |
| 93 | 52728.022 | 58901.722 | 8.968 | 0.231 | Integral( * ) | Mas-Hesse et al. (2003) | P |
| 252 | 53704.412 | 58959.349 | 8.852 | 0.250 | AAVSO | Kafka (2021) | Q |
| 573 | 55968.763 | 58449.837 | 9.079 | 0.153 | ASAS-SN | Kochanek et al. (2017) | R |
| 982 | 56268.080 | 58866.915 | 8.981 | 0.224 | KWS | Maehara (2014) | S |
Notes. Number of data points, mean magnitudes, and their standard deviations are given. HJD′ = HJD – 2400000. ( * ) The INTEGRAL satellite data are in barycentric Julian date (BJD-2451544.5).
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