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Pulkovo compilation of radial velocities for 35495 stars in a common system.
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A sample of 180 supposedly composite-spectrum stars has been studied onthe basis of spectra obtained in the near infrared (8370-8780 Angstroms)at a dispersion of 33 Anstroms/mm. The objective was to study the coolercomponents of the systems. Of our sample, 120 are true compositespectra, 35 are hot spectra of types B, F and 25 are Am stars. We find astrong concentration of the cooler components of the composite spectraaround G8III. In view of the difficulty of classifying compositespectra, because of the super position of an early type dwarf and a latetype giant or supergiant spectrum, we have made several tests to controlthe classification based upon the infrared region. Since all tests gavepositive results, we conclude that our classifications can be consideredas being both reliable and homogeneous. Table \ref{tab1} is alsoavailable electronically at the CDS via anonymous ftp 130.79.128.5 orhttp://cdsweb.u-strasbg.fr/Abstracts.html} Based upon observationscarried out at Observatoire de Haute-Provence (CNRS).
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Spectroscopic observations of a sample of nearby B-G stars are reported.The observations were obtained at resolution 19 km/s in the spectralregion near the 448.1228-nm line of Mg II using a CCD-detectorspectrograph on the coude-feed telescope at KPNO on April 16-20, 1986.The data are presented in extensive tables and briefly characterized.
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Miembro de los siguientes grupos:
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Datos observacionales y astrométricos
| Constelación: | Hidra |
| Ascensión Recta: | 10h59m24.14s |
| Declinación: | -26°46'06.6" |
| Magnitud Aparente: | 7.605 |
| Distancia: | 213.22 parsecs |
| Movimiento Propio en Ascensión Recta: | 0.7 |
| Movimiento Propio en Declinación: | 5.8 |
| B-T magnitude: | 8.277 |
| V-T magnitude: | 7.661 |
Catálogos y designaciones:
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INHABITED SKY
