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The 41 inch was installed in the southern dome, replacing the old 24-inch (2 foot ) reflecting telescope that dated to the turn of the century. [10] The northern dome housed the new 24 inch, which replaced the Kenwood 12-inch refractor. [10] Both of these domes are on the eastern side of the building along with the meridian transit room. [10]
UH88 is a Cassegrain reflector tube telescope with an f/10 focal ratio, supported by a large open fork equatorial mount. It was the last telescope on Mauna Kea to use a tube design rather than an open truss, and is the largest in the complex to use an open fork mount, with neighboring telescopes in the 3-meter class using English mount designs.
The observatory is a 1-meter Coudé telescope with a field of view of 0.7 degrees, supported by an English cross-axial mount inside a dome 12.5-meters in diameter. Its main purposes are: to be the optical ground station of the Artemis telecommunications satellite (the project from which the telescope takes its name)
The telescope dome is relatively small, and is ventilated by a system of flaps that makes air flow smoothly across the mirror, reducing turbulence and leading to sharper images. [ 2 ] The NTT was the first telescope using what is now known as active optics: a feedback loop that actively keeps the (comparatively thin) monolithic mirror in shape ...
The Arecibo Telescope was a 305 m (1,000 ft) spherical reflector radio telescope built into a natural sinkhole at the Arecibo Observatory located near Arecibo, Puerto Rico.A cable-mount steerable receiver and several radar transmitters for emitting signals were mounted 150 m (492 ft) above the dish.
The observatory also includes a smaller radio telescope, a LIDAR facility, and a visitor center, which remained operational after the telescope's collapse. [4] [5] The asteroid 4337 Arecibo is named after the observatory by Steven J. Ostro, in recognition of the observatory's contributions to the characterization of Solar System bodies. [6]
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. There are several smaller telescopes – some permanently mounted – that are primarily used for educational purposes.
First light was originally scheduled for 2006. The telescope finally came into regular use in 2013. The Anna L. Nickel 39-inch (1-meter) reflector (North (small) Dome, Main Building) The Great Lick 36-inch (91-centimeter) refractor (South Dome, Main Building, Observatory Peak) The Crossley 35-inch (90-centimeter) reflector (Crossley Dome ...