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| Fifth fundamental catalogue. Part 2: The FK5 extension - new fundamental stars The mean positions and proper motions for 3117 new fundamental starsessentially in the magnitude range about 4.5 to 9.5 are given in thisFK5 extension. Mean apparent visual magnitude is 7.2 and is on average2.5 magnitudes fainter then the basic FK5 which has a mean magnitude of4.7. (The basic FK5 gives the mean positions and proper motions for theclassical 1535 fundamental stars). The following are discussed: theobservational material, reduction of observations, star selection, andthe system for the FK5 extension. An explanation and description of thecatalog are given. The catalog of 3117 fundamental stars for the equinoxand epoch J2000.0 and B1950.0 is presented. The parallaxes and radialvelocities for 22 extension stars with large forecasting effects aregiven. Catalogs used in the compilation of the FK5 fundamental catalogare listed.
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| VI photometry of selected SAO stars Johnson V- and I-band photoelectric photometry has been obtained for 158SAO stars in a continuing program in support of the Near InfraredPhotographic Sky Survey. These data are utilized in the calibration ofthe survey photographs and are presented here to assist other programsreliant upon access to photometry in the photographic infrared.
| Photographic observations of comets and minor planets Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1973A&AS...11..107J&db_key=AST
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Datos observacionales y astrométricos
Constelación: | Casiopea |
Ascensión Recta: | 03h20m06.95s |
Declinación: | +69°43'52.7" |
Magnitud Aparente: | 6.577 |
Distancia: | 198.02 parsecs |
Movimiento Propio en Ascensión Recta: | 13.9 |
Movimiento Propio en Declinación: | -7.3 |
B-T magnitude: | 6.58 |
V-T magnitude: | 6.578 |
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