HD 44131 is a star in the equatorialconstellation of Orion, positioned near the eastern constellation border with Monoceros. It has a reddish hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.91.[2] The star is located at a distance of approximately 465 light years from the Sun based on parallax,[1] and it is drifting further away with a radial velocity of +48.6 km/s.[6] Based on radial velocity variations, it is a candidate spectroscopic binary system and a preliminary orbital solution was published in 1991 with a period of 9.29 yr. However, these velocity variations may be due to other causes.[9]
^ abHouk, N.; Swift, C. (1999). "Michigan catalogue of two-dimensional spectral types for the HD Stars". Michigan Spectral Survey. 5. Bibcode:1999MSS...C05....0H.
^ abMallama, A. (2014). "Sloan Magnitudes for the Brightest Stars". The Journal of the American Association of Variable Star Observers. 42 (2): 443. Bibcode:2014JAVSO..42..443M.Vizier catalog entry
^Mazeh, Tsevi; et al. (July 1996). "Spectroscopic Orbits for Three Binaries with Low-Mass Companions and the Distribution of Secondary Masses near the Substellar Limit". Astrophysical Journal. 466: 415. Bibcode:1996ApJ...466..415M. doi:10.1086/177521.
^"Light Curve". Hipparcos ESA. ESA. Retrieved 11 October 2022.