James Augustine Aloysius Joyce (2 February 1882 - 13 January 1941) je olukowe ati ako-ewi omo Irelandi, to je gbigba gege bi ikan ninu awon olukowe to ipa julo ni orundun 20.. 
The “Wide field Camera” (WFC) covered a large Angular field at the expense of Resolution, while the "Planetary Camera” (PC) took images at a longer Effect focal length than the w chips, giving it a greater Magàdánwòcation.The GHrs was a yíyàro designed to operate in the ultraviolet.. 