GQ Lupi is a T Tauri variable star approximately 495 light-years away[3] in the constellation of Lupus.
[8] In 2020, another low-mass companion of GQ Lupi was discovered at a separation distance of about 16 arcseconds, or 2400 AU.
Designated 2MASS J15491331-3539118 under the 2MASS catalogue, it is likely a young stellar object that is gravitationally bound to its primary star.
[6] In 2005, Ralph Neuhäuser and his colleagues reported a substellar object, GQ Lupi b, orbiting the star.
[9] As of 2006, the International Astronomical Union Working Group on Extrasolar Planets described GQ Lupi b as a "possible planetary-mass companion to a young star".