GQ Lupi b

[2] Located at a projected distance of about 100 AU from its companion star, giving it an orbital period of perhaps about 1,200 years, it is believed to be several times more massive than Jupiter.

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.

[9] Emission by hydrogen in the near-infrared (paschen beta) was first detected in 2007 with the Very Large Telescope (VLT).

[12] An analysis of additional VLT data showed a mutual inclination with the circumstellar disk of 84 ± 9°.

[13] A study from 2023 with additional VLT data found the emission line to be variable on timescales of several months to decades.

VLT NACO image, taken in the Ks-band, of GQ Lupi. The feeble point of light to the right of the star is the newly found cold companion. It is 250 times fainter than the star itself and it located 0.73 arc second west. At the distance of GQ Lupi, this corresponds to a distance of roughly 100 AU . North is up and East is to the left.