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Radial velocities. Measurements of 2800 B2-F5 stars for HIPPARCOS
Radial velocities have been determined for a sample of 2930 B2-F5 stars,95% observed by the Hipparcos satellite in the north hemisphere and 80%without reliable radial velocity up to now. Observations were obtainedat the Observatoire de Haute Provence with a dispersion of 80Ä,mm(-1) with the aim of studying stellar and galactic dynamics.Radial velocities have been measured by correlation with templates ofthe same spectral class. The mean obtained precision is 3.0 km s(-1)with three observations. A new MK spectral classification is estimatedfor all stars. Based on observations made at the Haute ProvenceObservatory, France and on data from The Hipparcos Catalogue, ESA.Tables 4, 5 and 6 are only available in electronic form at the CDS viaanonymous ftp to cdsarc.u-strasbg.fr or viahttp://cdsweb.u-strasbg.fr/Abstract.htm
| Photoelectric Photometry of Stars in the Vilnius System in the Area of the North America and Pelican Nebulae
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Membre dels grups següents:
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Dades d'Observació i Astrometria
| Constel·lació: | Cygnus |
| Ascensió Recta: | 21h00m00.33s |
| Declinació: | +42°55'52.6" |
| Magnitud Aparent: | 7.727 |
| Distancia: | 117.647 parsecs |
| Moviment propi RA: | 39.6 |
| Moviment propi Dec: | 15.7 |
| B-T magnitude: | 8.068 |
| V-T magnitude: | 7.756 |
Catàlegs i designacions:
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