On the photometric colour indices of the sun

Details On the photometric colour indices of the sun On the photometric colour indices of the sun

Jan 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....93..334c&link_type=abstract

Astronomy and Astrophysics, vol. 93, no. 1-2, Jan. 1981, p. 334-338.

Astronomy and Astrophysics

Astrophysics

30

Abundance, Astronomical Photometry, Metallic Stars, Sun, Calibrating, Chemical Composition, Interpolation, Stellar Temperature

Scientific paper

A direct interpolation method is employed to derive the photometric color indices of the sun. The solar colors are obtained based on a least-squares calibration of a relation between the color indices of stars similar to the sun (types F 5 - K 0) and their effective temperature, surface gravity and chemical composition. A value of the solar (B - V) index equal to 0.633 + or - 0.025 is determined, which corresponds to the canonical value of the color of a typical G 2 V star. The value is completely independent of any assumption on the metallicity differences between the sun and the Hyades, and does not imply a revision of the stellar effective temperature scale.

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