A constellation representing the river
Tigris, a real river of Mesopotamia which joins with the
Euphrates in the modern Iraq. The constellation was introduced
in 1612 by the Dutchman Petrus Plancius on the same globe as
the river Jordan made its first appearance. The celestial
Tigris began at Pegasus and flowed between Cygnus and Aquila
(an area now occupied by Vulpecula), ending by the right
shoulder of Ophiuchus. It was not shown on the atlases of
Johann Bode.
© Ian Ridpath. All rights reserved
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