Quadrans Muralis

Quadrans Muralis (Latin for mural quadrant) was a constellation created by the French astronomer Jérôme Lalande in 1795.

It depicted a wall-mounted quadrant with which he and his nephew Michel Lefrançois de Lalande had charted the celestial sphere, and was named Le Mural in the French atlas.

[1] It was between the constellations of Boötes and Draco, near the tail of Ursa Major,[2] containing stars between β Bootis (Nekkar) and η Ursae Majoris (Alkaid).

[3] Johann Elert Bode converted its name to Latin as Quadrans Muralis and shrank the constellation a little in his 1801 Uranographia star atlas, to avoid it clashing with neighboring constellations.

[1] In 1922, Quadrans Muralis was omitted when the International Astronomical Union (IAU) formalized its list of officially recognized constellations.