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Contemporaneous photometry and radial velocities of RR Lyrae stars
Contemporaneous BVRI photometry and radial velocities of seven RR Lyraevariables covering nearly the full span in Delta S and including the RRcstar T Sex are reported. Over 3000 BVRI measures at 100 s timeresolution and over 400 radial velocity measures are included. Thephotometric uncertainties are of order + or - 0.007 mag in V, (B - V)and (V - R) and + or - 0.014 in (R - I). The radial velocityuncertainties range from + or - 3.8 to + or - 8.0 km/s, correlated withthe metal deficiency. Light, color, and velocity curves are given.
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Ucan Balik |
| Sað Açýklýk: | 07h40m21.25s |
| Yükselim: | -64°29'00.1" |
| Görünürdeki Parlaklýk: | 8.652 |
| Uzaklýk: | 240.964 parsek |
| özdevim Sað Açýklýk: | -30.9 |
| özdevim Yükselim: | 65 |
| B-T magnitude: | 9.249 |
| V-T magnitude: | 8.702 |
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