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Built in 1953, it is located in Nashville, Tennessee, and is the only university facility not located on the main campus in Nashville. The observatory is named after Arthur J. Dyer, who paid for the observatory's 24-foot (7.3 m)-wide dome, and houses a 24-inch (610 mm) reflecting telescope named for astronomer Carl Seyfert.
The telescope is a Cassegrain reflector type with a 20.5-inch (52 cm) primary mirror. The mirror is one of many made by Corning Incorporated as a part of the research that allowed the pouring of the 200-inch mirror for the Hale Telescope. [1] The observatory was listed on the National Register of Historic Places in December 2009. [2]
Many modern telescopes and observatories are located in space to observe astronomical objects in wavelengths of the electromagnetic spectrum that cannot penetrate the Earth's atmosphere (such as ultraviolet radiation, X-rays, and gamma rays) and are thus impossible to observe using ground-based telescopes. [1]
Infrared astronomy is a sub-discipline of astronomy which specializes in the observation and analysis of astronomical objects using infrared (IR) radiation. The wavelength of infrared light ranges from 0.75 to 300 micrometers, and falls in between visible radiation, which ranges from 380 to 750 nanometers , and submillimeter waves.
A more recent air-borne infrared telescope to reach the stratosphere was NASA's Stratospheric Observatory for Infrared Astronomy (SOFIA) in May 2010. Together, United States scientists and the German Aerospace Center scientists placed a 17-ton infrared telescope on a Boeing 747 jet airplane. [4] Placing infrared telescopes in space eliminates ...
1990 – Hubble 2.4m space Telescope launched, mirror found to be flawed; 1991 – Compton Gamma Ray Observatory satellite; 1993 – Keck 10-meter optical/infrared reflecting telescope begins operation, located at Mauna Kea, Hawaii; 1993 – Very Long Baseline Array of 10 dishes
Atmospheric windows in the infrared: much of this type of light is blocked when viewed from the Earth's surface. The largest infrared telescopes for infrared astronomy are listed in terms of diameter of primary mirror. The infrared spectrum with its longer wavelength than visible light has a number of challenges, especially for ground-based ...
Akari (Astro-F) a Japanese mid and far infrared all-sky survey satellite, 2006–2008; Wide-field Infrared Survey Explorer (WISE) was launched in December 2009 to begin a survey of 99% of the sky at wavelengths of 3.3, 4.7, 12, and 23 μm. The telescope is over a thousand times as sensitive as previous infrared surveys.