W. M. Keck Observatory
|W. M. Keck Observatory|
The summit of Mauna Kea is considered one of the most important astronomical viewing sites in the world. The twin Keck telescopes are two of the largest optical/near-infrared instruments there.
|Wavelength||Optical, near infrared|
|Built||Keck I 1993, Keck II 1996|
|Angular resolution||0.04 to 0.4 arcseconds for individual telescopes, depending on target and instruments used|
|Focal length||17.5 m (f/1.75)|
The W. M. Keck Observatory is a pair of two large, ground-based telescopes located at Mauna Kea, Hawaii. Sitting more than two miles above sea level, the paired telescopes are used to examine light from distant stars in great detail. The primary mirrors of each of the two telescopes are 10 meters (33 feet) across, making them the second largest optical telescopes in the world; the Gran Telescopio Canarias is slightly larger.