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HD 34887


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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
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Ultraviolet spectrograms of stars obtained on Orion-2
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观测天体数据

星座:御夫座
右阿森松:05h23m03.12s
赤纬:+46°59'12.4"
视星:8.128
距离:41.459 天文距离
右阿森松适当运动:11.2
赤纬适当运动:-85.6
B-T magnitude:9.115
V-T magnitude:8.21

目录:
适当名称
HD 1989HD 34887
TYCHO-2 2000TYC 3362-735-1
USNO-A2.0USNO-A2 1350-05717505
HIPHIP 25166

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