Contenidos
Imágenes
Subir su imagen
DSS Images Other Images
Artículos relacionados
The photometric orbit and apsidal motion of V523 Sagittarii
The study derives improved photometric orbits and apsidal motionparameters on the basis of new observations of V523 Sgr (F0 + F). Of thewell-known eclipsing binaries, AY Cam appears to be the most similar instellar physical properties. V and B magnitudes of V523 Sgr are listed.
| The S201 far-ultraviolet imaging survey. III - A field in Sagittarius
Far-ultraviolet imagery of a 20 deg diameter field in Sagittarius,centered near (1950) R.A. 18 h 34 m, decl. -30 deg 25 arcmin, wasobtained by the S201 far-ultraviolet camera during the Apollo 16mission. In a 10-minute exposure covering the 1250-1600 A wavelengthrange, 1034 star images are detectable, with a limiting ultravioletmagnitude of about 10. Most of these objects are identified withearly-type stars listed in the Smithsonian Astrophysical ObservatoryStar Catalog, the Catalog of Stellar Identifications, or both, but 203objects remain unidentified or are identified with late-type stars. Thephotometric measurements appear to be in reasonable agreement with thoseof the International Ultraviolet Explorer for stars in common, and withexpectations for A0 stars. A detailed photometric study was made of theMessier 8 region, and it is concluded that dust-scattered starlightcontributes about half of the total radiation observed from the centralregion of M8.
|
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: | Sagitario |
| Ascensión Recta: | 19h03m33.52s |
| Declinación: | -29°36'50.4" |
| Magnitud Aparente: | 9.064 |
| Movimiento Propio en Ascensión Recta: | -0.8 |
| Movimiento Propio en Declinación: | -8.1 |
| B-T magnitude: | 9.147 |
| V-T magnitude: | 9.071 |
Catálogos y designaciones:
|
