Draft:HD 61859

HD 61859 is a spectroscopic binary in the constellation Gemini, located next the bright star Castor. It is made up of two F-type main-sequence stars which orbit each other every 32 days. The system has an apparent magnitude of 6.06, meaning that it is faintly visible to the naked eye under dark skies. It is located at a distance of 64.983 ly from Earth.

Characteristics
HD 61859 is a spectroscopic binary system, more specifically a double-lined spectroscopic binary, where the spectrum of both stars are seen. It is made up of two F-type main sequence stars that have the same spectral type of F7V. Both stars orbit each other every 32 days, and are separated by a distance of. The orbit of the system is highly inclined in relation to Earth (i = 94.73°) and has an eccentricity of 0.1951, causing the distance between both components to vary from to.

The Transiting Exoplanet Survey Satellite (TESS) detected very weak eclipses 0.1% in the system, when the secondary star passes in front of the primary. This observation, however, is still insufficient to classify the system as an eclipsing binary.