HD 75620

내용

Intermediate-Brightness Equatorial Spectrophotometric Standards We have obtained spectral energy distributions for 41 7m 8m stars nearthe celestial equator (δ=±3°). The λλ31007600 Å spectral range is studied with a spectral resolution of 50Å. The relative rms error in the visible is 1 2%, increasing to 35% towards the edges of the wavelength interval studied. All stars arereferenced to a single standard, the circumpolar star HD 221525. Thesynthetic colors of common stars are compared with those observed infour photometric systems: U BV, W BV R, uvby, and that of the TYCHOcatalog. The program stars are recommended as secondaryspectrophotometric standards.
Lichtelektrische UBV-Photometrie von Standardsternen und in vier Sternfeldern am Äquator Not Available
Catalogue de 240 couples visuels d'étoiles naines rouges Not Available

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