Former constellation
Polophylax (Greek : guardian of the celestial [south] pole ) was a southern constellation that lay where Tucana and Grus now are.
It was introduced by Petrus Plancius in the small celestial planispheres on his large wall map of 1592.[ 1] It is also shown on his smaller world map of 1594 and on world maps copied from Plancius.[ 2]
It was superseded by the twelve constellations which Petrus Plancius formed in late 1597 or early 1598 from the southern star observations of Pieter Dircksz Keyser and Frederik de Houtman .[ 2]
References
^ Barentine, John C. (2016), "Polophylax" , Uncharted Constellations: Asterisms, Single-Source and Rebrands , Springer Praxis Books, Springer, Cham, pp. 109–113, doi :10.1007/978-3-319-27619-9_12 , ISBN 978-3-319-27619-9 , retrieved 2023-08-04
^ a b Ridpath, Ian. "Polophylax" . Star Tales . Retrieved 2023-08-04 .
Constellation history
48 constellations listed by
Ptolemy after 150 AD
The 41 additional constellations added in the 16th, 17th and 18th centuries
obsolete constellation names