Dr. Oechslin then followed the Astrolabium up with two other astronomical watches: in 1988 the Planetarium Copernicus (named after the stargazing theaters called planetariums and of astronomer Copernicus) and in 1992 the Tellurium Johannes Kepler (named after the element tellurium and astronomer Johannes Kepler).
Ununpentium should display eka-bismuth chemical properties and should therefore form a sesquioxide, Uup2O3, and analogous chalcogenides, Uup2S3, Uup2Se3 and Uup2Te3.
As a class, they represent a significant source of the world's Cu, Zn, Pb, Au, and Ag ores, with Co, Sn, Ba, S, Se, Mn, Cd, In, Bi, Te, Ga and Ge as co- or by-products.