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The determination of the zero point of the wavelength scale on stellar spectrograms
A novel method for determining the zero point of the wavelength scale(lambda0) on low-spectral-resolution spectrograms obtainedwith an objective plasma is presented. The method was applied to a groupof 100 stars belonging to the B-G spectral classes. Near-UV spectrogramsof these stars were obtained by the Orion-2 space observatory.Equivalent widths were obtained for the resonance doublet of Mg II 2800A in the spectra of the stars studied.
| Absolute spectrophotometric investigation of a group of F, G, and K stars in the UV and visible ranges.
Results of the absolute spectrophotometry of 21 F, G, and K stars,obtained via space and ground observations, are presented. The absoluteenergy distribution for these stars in the 2300-6600 A region wasobtained, and results are compared with Kuruch's theoretical models.
| UBV photometry of stars whose positions are accurately known. III
UBV photometric observations of 417 stars at BD declination 35-49 degfrom the NPZT(74) catalog of Yasuda et al. (1982) and the AGK3R catalogof Corben (1978), obtained with the 40-cm Cassegrain reflector atKvistaberg Observatory during 1984-1985, are reported. The data arepresented in tables, and the mean errors per observation are given as0.016 mag in V, 0.011 mag in B-V, 0.012 mag in U-B for U less than 10,and 0.026 mag in U-B for U greater than 10.
| Space and ground-based spectrophotometric observations of a group of stars of the classes F, G, and K
Not Available
| Ultraviolet spectrograms of stars obtained on Orion-2
Not Available
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Arabaci |
| Sað Açýklýk: | 05h23m03.12s |
| Yükselim: | +46°59'12.4" |
| Görünürdeki Parlaklýk: | 8.128 |
| Uzaklýk: | 41.459 parsek |
| özdevim Sað Açýklýk: | 11.2 |
| özdevim Yükselim: | -85.6 |
| B-T magnitude: | 9.115 |
| V-T magnitude: | 8.21 |
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