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
s−1. The discovery of BD+14 4559 b was reported in the journal The Astrophysical Journal on June 10, 2009. BD+20°2457 b BD+20°2457 c HD 240210 b Niedzielski
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. doi:10
(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
89345 50496 10h 18m 41.0s +10° 07′ 45″ 9.4 413 G5V has two planets (b) BD+20°2457 10h 16m 44.86s +19° 53′ 29.0″ 9.73 650 K2II has a planet (c) and a brown