- Johannes Hevelius, the Polish astronomer who introduced this constellation in his star catalogue of 1687, continued to measure star positions with the naked eye long after other astronomers had adopted telescopic sights. The French astronomer Pierre Gassendi (1592–1655) wrote in 1644 that Hevelius had the ‘eyes of a lynx’ and this constellation can be seen as an attempt to demonstrate that.[note] Indeed, Hevelius wrote in the Introduction to his catalogue that anyone who wanted to observe it would need the eyesight of a lynx (‘oculos habeat Lynceos’), although he undoubtedly exaggerated the faintness of the 19 stars he catalogued in it, typically by a full magnitude.