McDonald Observatory - #ThrowbackThursday Before Gerard P. Kuiper used the 2.1m (82”) Otto Struve Telescope to discover Uranus' fifth moon, Miranda, Neptune's second-largest moon, Nereid, and the atmosphere of Saturn's giant moon,
File:Electric motors and position sensors at the Otto Struve Telescope at the McDonald Observatory, Texas.JPG - Wikimedia Commons
![Otto Struve Telescope - McDonald Observatory Canvas Print / Canvas Art by Mountain Dreams - Pixels Canvas Prints Otto Struve Telescope - McDonald Observatory Canvas Print / Canvas Art by Mountain Dreams - Pixels Canvas Prints](https://render.fineartamerica.com/images/rendered/default/canvas-print/12/7/mirror/break/images/artworkimages/medium/1/otto-stuve-telescope-mcdonald-observatory-mountain-dreams-canvas-print.jpg)