Contenidos
Imágenes
Subir su imagen
DSS Images Other Images
Artículos relacionados
Observational studies of Cepheids. II - BVRI photometry of 112 Cepheids
Over 4000 differentially determined photoelectric BVRI observations andthe resulting light curves are presented for 112 Cepheids accessiblefrom Northern Hemisphere observatories. The internal precision of thesedata is better than + or - 0.01 mag, and the accuracy of transformationto the Johnson BVRI system is nearly as good.
| An investigation of radius anomalies among short-period Cepheids
Simultaneous photometric and spectroscopic observations have beenobtained of two short-period Cepheids, SU Cas and TU Cas. The Wesselinkmethod of Barnes et al. was used to obtain radii. The radii are found toagree, within the expected error, with evolutionary values. Thisstrengthens the argument that the beat Cepheids are normal Cepheids inmixed-mode behavior rather than a separate class of objects and thatevolutionary masses and radii are correct.
|
Enviar un nuevo artículo
Enlaces relacionados
- - No se han encontrado enlaces -
En viar un nuevo enlace
Miembro de los siguientes grupos:
|
Datos observacionales y astrométricos
| Constelación: | Casiopea |
| Ascensión Recta: | 00h23m16.98s |
| Declinación: | +51°11'40.4" |
| Magnitud Aparente: | 8.567 |
| Distancia: | 277.008 parsecs |
| Movimiento Propio en Ascensión Recta: | 11.8 |
| Movimiento Propio en Declinación: | -1.5 |
| B-T magnitude: | 9.781 |
| V-T magnitude: | 8.668 |
Catálogos y designaciones:
|
