The absolute magnitudes of G5-M3 stars near the giant branch

Astronomy and Astrophysics – Astrophysics

Scientific paper

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G Stars, Red Giant Stars, Stellar Luminosity, Stellar Magnitude, Stellar Motions, Stellar Parallax, Calibrating, Radial Velocity, Statistical Analysis, Stellar Spectra

Scientific paper

The absolute magnitudes of stars on the red giant branch (G-K-M) have been determined using both trigonometric and statistical parallaxes, from a sample of 212 stars classified in the Revised MK System (Keenan and Pitts, 1980). The results of both methods are summarized in a table. A good agreement is found and the difference between trigonometric and statistical parallaxes is found not to be greater than + or - 0.002. The computed absolute magnitudes and space motions are tabulated.

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