HD 50554

In 2001, a giant planet was announced by the European Southern Observatory, who used the radial velocity method. The discovery was formally published in 2002 using observations from the Lick and Keck telescopes. In 2023, the inclination and true mass of HD 50554 b were determined via astrometry. Two more inner planet candidates, both super-Earths, have been detected by TESS; they were validated by a 2026 study. An infrared excess indicates a debris disk is orbiting the star at a distance of with a half-width of . This may be an analog of the Kuiper belt at an earlier stage of its evolution, which suggests a Neptune-like planet could be orbiting at its inner edge. == See also ==