1971•Publications of the Astronomical Society of the PacificOpen access

The Mass and Absolute Magnitude of the Visual Binary Delta Equulei from Radial Velocity Observations

M. M. Dworetsky, Daniel M. Popper, D. S. P. Dearborn

Abstract

We have determined that the average component of 8 ISqu has a mass 9)? = 1.23 I 0.089)? , and an absolute magnitude Mv = + 4.0 I 0.1. This determination is based on new observations of the system as a spectroscopic binary combined with data from the visual orbit. Key words: stellar masses - stellar luminosities - visual binary stars - spectroscopic binary stars

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Key concepts: Visual binary, Absolute magnitude, Physics, Magnitude (astronomy), Astrophysics, Radial velocity, Apparent magnitude, Binary star