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Cepheids and nonvariable supergiants
Photometric parameters for Cepheids in a previous paper are adapted foruse with nonvariable supergiants of similar temperature. The closecorrelation between the abundance and luminosity parameters forclassical, short-period Cepheids (SPC) confirms the nearlydispersionless luminosity temperature relation for these variables. Theassumptions that (1) the C-type variables are transiting the Cepheidtemperature for the first time, (2) the classical SPC are mostlytransiting for the second time, and (3) the long-period Cepheids (LPC)are a mixture of stars transiting for the first to third or fourth timesare found to be consistent with the various correlations of temperatureand luminosity parameters. The nonvariable supergiants with photometricparameters similar to those for the Cepheids are found to haveluminosities consistent with their spectroscopic luminosity class. Few,if any, nonvariable supergiants have temperatures and luminositiessimilar to the LPC.
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Datos observacionales y astrométricos
| Constelación: | Cochero |
| Ascensión Recta: | 06h23m07.69s |
| Declinación: | +36°04'51.9" |
| Magnitud Aparente: | 9.616 |
| Movimiento Propio en Ascensión Recta: | -0.8 |
| Movimiento Propio en Declinación: | -5.8 |
| B-T magnitude: | 9.866 |
| V-T magnitude: | 9.637 |
Catálogos y designaciones:
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INHABITED SKY
