Indus is a constellation in the southern sky first professionally surveyed by Europeans in the 1590s, namely Dutchmen, and mapped on a globe by Pieter Platevoet (Plancius) by early 1598 and thus included in Bayer's keynote, consolidated sky atlas of 1603. On average it is centred, that is to say its zenith, is over 25° south of the Tropic of Capricorn. South of the Tropic lie only four countries, the rest being parts of oceans and Antarctica and ten countries straddle the tropic but the bright right-angled triangle can be seen for most of the year from the Equator. It has a north-south elongated, complex scope and its other English direct translation of its name is sometimes seen in old writings, the Indian as it is in other European languages.