Best Eighteenth

Rangifer was Pierre Charles Le Monnier's 1736 Reindeer between Cassiopeia and Camelopardalis, also known as Tarandus in old atlases.

Gloria Frederici was Bode's 1787 constellation honoring Frederick the Great of Prussia, placed near Andromeda after the king's 1786 death.

Psalterium Georgianum was Maximilian Hell's 1789 George's Psaltery, formed from northern Eridanus stars to honor Britain's George III.

Norma Nilotica was Alexander Jamieson's 1822 Nilometer constellation on Aquarius's western edge, named for the Egyptian Nile-measuring device.

Solarium was Alexander Jamieson's 1822 Sundial constellation, proposed as a replacement for Reticulum but never accepted in modern usage.

Hippocampus was John Hill's 1754 Sea Horse constellation between Eridanus, Taurus, and Cetus, a failed addition from his Urania star atlas.

Manis was John Hill's 1754 Pangolin constellation between Andromeda, Lacerta, and Cygnus, notable as one of his unusual animal inventions.

Aranea was John Hill's 1754 Long-Legged Spider constellation between Virgo and Corvus, one of his many zoological additions that failed to last.

Hirudo was John Hill's 1754 Leech constellation in northern Orion, one of several obscure animal figures omitted from the IAU's 88 constellations.

Scarabaeus was John Hill's 1754 Rhinoceros Beetle constellation, one of his short-lived insect figures and never adopted by modern astronomy.

Dentalium was John Hill's 1754 Tooth Shell constellation between Aquila and Aquarius, part of his short-lived scheme of marine and animal figures.

Patella was John Hill's 1754 Limpet constellation, another shellfish figure from his rejected natural-history expansion of the northern sky.