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HD 4990


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Five-colour photometry of OB-stars in the Southern Hemisphere
Observations of OB-stars, made in 1959 and 1960 at the Leiden SouthernStation near Hartebeespoortdam, South Africa, with the VBLUW photometerattached to the 90 cm light-collector, are given in this paper. They arecompared with photometry obtained by \cite[Graham (1968),]{gra68}\cite[Walraven & Walraven (1977),]{wal77} \cite[Lub & Pel(1977)]{lub77} and \cite[Van Genderen et al. (1984).]{gen84} Formulaefor the transformation of the present observations to those of\cite[Walraven & Walraven (1977)]{wal77} and \cite[Lub & Pel(1977)]{lub77} are given. Table 4 is only available in electronic format the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) orvia http://cdsweb.u-strasbg.fr/Abstract.html

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观测天体数据

星座:鳳凰座
右阿森松:00h51m22.51s
赤纬:-44°22'05.9"
视星:9.738
右阿森松适当运动:-6.3
赤纬适当运动:-37.5
B-T magnitude:10.398
V-T magnitude:9.793

目录:
适当名称   (Edit)
HD 1989HD 4990
TYCHO-2 2000TYC 7538-841-1
USNO-A2.0USNO-A2 0450-00300840
HIPHIP 4001

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