BD+202457 is a 10th-magnitude K-type bright giant star located approximately 4,800 light-years away in the constellation of Leo. The name refers to the
(2009). "Substellar-mass Companions to the K-dwarf BD+14 4559 and the K-giants HD 240210 and BD+202457". The Astrophysical Journal. 707 (1): 768–777. arXiv:0906
rather than a planet. Similarly, a 2017 study showed 2MASS J21402931+1625183 b to actually have a mass of 69+8 −9 MJ, making it a high-mass brown dwarf or