River Tigris or Tigris (named after the

Tigris The Tigris () is the easternmost of the two great rivers that define Mesopotamia, the other being the Euphrates. The river flows south from the mountains of the Armenian Highlands through the Syrian and Arabian Deserts, and empties into the ...

river) was a constellation, introduced in 1612 by

Petrus Plancius Petrus Plancius (; 1552 – 15 May 1622) was a Dutch-Flemish astronomer, cartographer and clergyman. He was born as Pieter Platevoet in Dranouter, now in Heuvelland, West Flanders. He studied theology in Germany and England. At the age of 24 he ...

. One end was near the shoulder of

Ophiuchus Ophiuchus () is a large constellation straddling the celestial equator. Its name comes from the Ancient Greek (), meaning "serpent-bearer", and it is commonly represented as a man grasping a snake. The serpent is represented by the constella ...

and the other was near Pegasus, and in between it passed through the area now occupied by

Vulpecula Vulpecula is a faint constellation in the northern sky. Its name is Latin for "little fox", although it is commonly known simply as the fox. It was identified in the seventeenth century, and is located in the middle of the Summer Triangle (an ...

, flowing between Cygnus and Aquila. It did not appear on Hevelius' atlas of 1687 or Johann Bode's ''Uranographia'' atlas of 1801 and was quickly forgotten.

References

External links

* http://www.pa.msu.edu/people/horvatin/Astronomy_Facts/obsolete_pages/river_tigris.htm Former constellations Constellations listed by Petrus Plancius Dutch celestial cartography in the Age of Discovery Astronomy in the Dutch Republic 1610s in the Dutch Republic {{astronomy-stub

See also

References

External links