The Swedish 1-m Solar Telescope, with a lens diameter of 43 inches, is technically the largest, with 39 inches clear for the aperture.The second largest refracting telescope in the world is the Yerkes Observatory 40 inch (102 cm) refractor, used for astronomical and scientific observation for over a century.

The observatory's main dome houses a 40 in-diameter (102 cm) doublet lens refracting telescope, the second-largest refractor ever successfully used for astronomy. The largest lens is the Swedish 1-m Solar Telescope .

2019年10月28日 · Yerkes Observatory, in Williams Bay, Wisconsin, houses the largest refracting telescope ever built for astronomical research, with a main lens that's 40 inches (1.02 meters) in diameter.

The 40" Great Refractor Yerkes Observatory houses the largest refracting telescope in the world! It began astronomical observations upon its completion in 1897 and remains a technological wonder still capable of bringing inspiration and the beauty of space to our eyes.

Yerkes Observatory, “the birthplace of modern astrophysics”, in Williams Bay, Wisconsin is the home of the 40-inch diameter “Great Refractor”, the world’s largest lens telescope, completed in 1897. From 1897 to 1908 the Great Refractor was the largest astronomical telescope in the world.

The 40-inch refracting telescope at Yerkes Observatory in Williams Bay, Wisconsin, contains the world’s largest refracting lenses. Built in 1895, the telescope contains two lenses, one made of crown glass, and one made of flint glass. The lenses are each 40 inches in diameter, weigh 500 pounds, and have a 62-foot focal length.

2016年10月26日 · The largest refracting telescope in the world is at Yerkes Observatory in Williams Bay, Wisconsin, and you can observe with it. A refracting telescope is an “old school” telescope—the long, skinny kind with lenses at both ends …

2010年2月17日 · Housed in a six ton, 60-foot-long tube atop a 43-foot-high mount, the telescope dwarfs the observer. And with a 40-inch diameter lens, the Yerkes refractor is still the largest of its kind in...

The Yerkes Observatory of the University of Chicago was named for its benefactor, transportation magnate Charles T. Yerkes, and was opened in 1897. It contains the largest refracting telescope (40 inches [1 metre]) in the world.

2023年2月7日 · Get to know the Great Refractor – the world’s largest refracting telescope built for astronomical research at Yerkes Observatory in Williams Bay, Wisconsin. See how the 125-year-old telescope is being restored, maintained and learn more about its incredible legacy.