Hale Telescope, Reflecting telescope at Palomar Mountain Observatory, California, United States.
The Hale Telescope features a 200-inch primary mirror made of borosilicate glass, measuring 5.1 meters in diameter and weighing 14.5 tons.
The telescope remained the largest operational instrument from its completion in 1949 until 1976, when the Soviet BTA-6 telescope surpassed its dimensions.
Astronomers at the Hale Telescope identified quasars for the first time through spectral analysis, advancing the understanding of distant celestial objects.
The telescope moves on hydrostatic bearings with a small 1/12-horsepower motor, allowing precise rotational adjustments despite its 500-ton movable structure.
The instrument includes an observation capsule at the prime focus where researchers can position themselves to conduct direct astronomical measurements.
Location: California
Location: Palomar Mountain Observatory
Inception: 1948
Elevation above the sea: 1,713 m
Part of: Palomar Mountain Observatory
Website: http://astro.caltech.edu/palomar/about/telescopes/hale.html
GPS coordinates: 33.35628,-116.86489
Latest update: May 27, 2025 09:50
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