1978•Publications of the Astronomical Society of the PacificOpen access

Improved orbits of the visual binary del Equ.

Daniel M. Popper, M. M. Dworetsky

Abstract

Additional coude' spectrograms of Equ combined with analysis of the available visual double star observations allow us to determine the properties of this F7 V system with high precision. The average values of the mass and visual absolute magnitude are 1.19 'A)' , and , respectively. Key words: stellar masses-stellar luminosities-visual binary stars-spectroscopic binary stars

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Key concepts: Visual binary, Physics, Stars, Binary star, Binary number, Astrophysics, Apparent magnitude, Magnitude (astronomy)