- A regular octahedron is an octahedron that is a regular polyhedron. All the faces of a regular octahedron are equilateral triangles of the same size, and exactly four triangles meet at each vertex. A regular octahedron is convex, meaning that for any two points within it, the line segment connecting them lies entirely within it.
- Star Tales - Camelopardalis (ianridpath.com)
One of the most unlikely animals to be found in the sky is a giraffe. The Greeks called giraffes ‘camel leopards’ because of their long necks and spots, which is where the name Camelopardalis comes from. However, the constellation Camelopardalis was not invented by the Greeks but by the Dutch theologian and astronomer Petrus Plancius in 1612. Plancius first showed it on a celestial globe in that year along with another odd constellation that is still recognized, Monoceros.