Fabricius, Johannes

Dutch astronomer who may have been the first observer of sunspots (1610/1611) and was the first to publish information on such observations. He did so in his Narratio de maculis in sole observatis et apparente earum cum sole conversione (1611; �Account of Spots Observed on the Sun and of Their Apparent Rotation with the Sun�). The son of the astronomer David Fabricius,