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HD 5515


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Spectral classification of stars with the same colours in intermediate multiband photometry - The concept of photometric 'star-box'
The concept of a photometric 'star box' is introduced for use with the UB V B1 B2 V1 G photometric system. Star boxes are employed to grouptogether all stars for which each photometric color differs by less thansome small quantity (in magnitude) from the corresponding color of agiven 'central' star. Probable causes of differences between the colorsof two stars are summarized, scatter in spectral type and luminosityclass within a single box is discussed, and the standard deviation ofnarrow-band photometric indices is calculated for stars grouped in thesame box. Dispersions in the UV and IR energy distributions of stars inthe same box are examined, and the results obtained in the seven-colorphotometric system for 113 stars are compared with the correspondingresults in a thirteen-color system. The classification of Am and Am:stars is briefly examined on the basis of star boxes.

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观测天体数据

星座:雙魚座
右阿森松:00h57m18.23s
赤纬:+25°17'33.4"
视星:8.477
距离:60.024 天文距离
右阿森松适当运动:177.1
赤纬适当运动:17.9
B-T magnitude:9.163
V-T magnitude:8.534

目录:
适当名称   (Edit)
HD 1989HD 5515
TYCHO-2 2000TYC 1743-1788-1
USNO-A2.0USNO-A2 1125-00334778
HIPHIP 4471

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