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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
| UVby-beta electrophotometry of RR Lyrae stars.
Not Available
| Photometry of stars in the uvgr system
Photoelectric photometry is presented for over 400 stars using the uvgrsystem of Thuan and Gunn. Stars were selected to cover a wide range ofspectral type, luminosity class, and metallicity. A mean main sequenceis derived along with reddening curves and approximate transformationsto the UBVR system. The calibration of the standard-star sequence issignificantly improved.
| Electrophotometry of DH Peg and AV Peg
Not Available
| BV Photometry of the Rr/c Variable Star Dh-Pegasi
Revised light elements of the RR Lyrae variable star DH Pegasi arepresented together with a new BV light curve
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Посматрања и Астрометриски подаци
| Сазвежђа: | Пегаз |
| Ректацензија: | 22h15m33.94s |
| Deклинација: | +06°38'32.7" |
| Apparent магнитуда: | 8.434 |
| Даљина: | 429.185 parsecs |
| Proper motion RA: | -12.5 |
| Proper motion Dec: | -4 |
| B-T magnitude: | 8.494 |
| V-T magnitude: | 8.439 |
Каталог и designations:
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INHABITED SKY
