The 2.5-meter (100-inch) Ir?n?e du Pont telescope has been in operation at Las Campanas Observatory since 1977. The telescope became a reality owing to a generous gift in 1970 from Mr. and Mrs. Crawford H. Greenewalt to the Carnegie Institution of Washington, which supplied supplemental funds. Basic considerations were that the telescope be as versatile, reliable, and convenient as possible for its size, and that it have excellent optical performance to match the natural observing conditions offered by the site. Because it was not planned to construct a companion instrument such as a large Schmidt for wide-angle surveys, the du Pont telescope was designed to have an exceptionally wide field for direct photography.
|Aperture: 2.5 meters||Latitude: 29 00.2 S|
|First light: 1977||Longitude: 4 42 48 W|
|Elevation: 2282 meters|