(Latin for the swallow
, later applied to birds of paradise
), from απους
, meaning "no-feet") is a faint southern constellation
, not visible to the ancient Greeks. The constellation was one of twelve constellations created by Pieter Dirkszoon Keyser
and Frederick de Houtman
, and it first appeared in Johann Bayer
. Its genitive
This constellation was originally named "Avis Indica" It first appeared on Petrus Plancius's 1598 celestial globe as "Paradysvogel Apis Indica": "Apis Indica" is Latin for "Indian Bee", likely an error for "Avis Indica" = "Indian Bird"; this confusion seems to have prompted a rename of two constellations: "Avis Indica" to "Apus" and "Apis" to "Musca".
Notable deep sky objects
Apus has several impressive clusters, NGC 6101
and IC 4499
, as well as a very unusual nebular structure IC 4633
- Ridpath, Ian; Wil Tirion (2007). Stars and Planets Guide. London: Collins.