Contenidos
Imágenes
Subir su imagen
DSS Images Other Images
Artículos relacionados
The nature of the Yale Common Proper Motion groups of stars
Attention is given to a large group of approximately 90 stars, twogroups of 20-30 stars, and 12 groups of a few stars each, taken from DDOsystem image tube spectral classification and intermediate bandphotometry for the Yale Common Proper Motion groups of 180 southernstars. Spectroscopic and photometric analyses of these groups haveindicated a very scattered Pop I main sequence in their color-magnitudediagrams. Distance moduli of 5 or less were derived from the averagespectroscopic parallaxes, in keeping with the proper motion amplitude of0.1 arcsec/year. The main sequence of each group shows scatter whenplotted in an HR diagram, indicating that they are probably nothomogeneous groups of stars sharing common physical origins.
|
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: | Serpiente |
| Ascensión Recta: | 18h21m09.49s |
| Declinación: | -02°21'54.2" |
| Magnitud Aparente: | 8.416 |
| Distancia: | 221.239 parsecs |
| Movimiento Propio en Ascensión Recta: | -2.1 |
| Movimiento Propio en Declinación: | -13.1 |
| B-T magnitude: | 8.614 |
| V-T magnitude: | 8.433 |
Catálogos y designaciones:
|
INHABITED SKY
