Illustration taken from 'Uranometria' (1603) by Johann Bayer, showing the star constellation of Andromeda (daughter of Cepheus and Casiopeia in Greek mythology). German astronomer and lawyer Johann Bayer (1572-1625) invented the system for naming stars using letters from the Greek alphabet, a system still used today for the brighter stars - those visible to the human eye without the aid of a telescope. 'Uranometria' depicts the positions of nearly 1000 stars in addition to those identified by Tycho Brahe. Andromeda is best known to astronomers as the location of the nearest large galaxy to our own Milky Way, the Andromeda Galaxy.
© Science Museum / Science & Society Picture Library