HD 81040 b

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HD 81040 b is a massive gas giant exoplanet that orbits the star HD 81040, discovered in 2005 by radial velocity.[1] Its orbital period is just over 1000 days. It has a semimajor axis of about 1.95 AU, and its orbit is quite eccentric, at a little over 0.5.[2][3]

Astrometry of HD 81040 using Gaia, published in several papers, has determined an orbital inclination of about 111°. This, combined with the minimum mass, gives a true mass of Template:Jupiter mass.[2][4][5][6][3] Since the inclination is high, there is a small chance that the planet transits.[2]

File:HD 81040 Astrometry.png
Astrometric orbit of HD 81040 b[4]

See also

References

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