Comparison between Geneva photometric boxes and MK spectral types through trigonometric parallaxes

Details Comparison between Geneva photometric boxes and MK spectral types through trigonometric parallaxes Comparison between Geneva photometric boxes and MK spectral types through trigonometric parallaxes

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....85..311c&link_type=abstract

Astronomy and Astrophysics, vol. 85, no. 3, May 1980, p. 311-315.

Astronomy and Astrophysics

Astrophysics

4

Instrument Errors, Parallax, Stellar Magnitude, Stellar Spectrophotometry, Binary Stars, Colorimetry, Statistical Analysis, Stellar Luminosity

Scientific paper

Trigonometric parallaxes are used to compare the reliability of Geneva 0.01 magnitude photometric boxes and MK spectral types as absolute magnitude indicators. The comparison consists in a global estimate of the absolute magnitude dispersion within the elementary cells of the two classification systems.
MK types are found to define absolute magnitudes at ±0.5 mag while photometric boxes lead to a dispersion of about 0.14.

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