Lowell Observatory is an astronomical observatory in Flagstaff, Arizona, United States. Lowell Observatory was established in 1894, placing it among the oldest observatories in the United States, and was designated a National Historic Landmark in 1965. In 2011, the Observatory was named one of "The World's 100 Most Important Places" by Time Magazine. It was at the Lowell Observatory that the dwarf planet Pluto was discovered in 1930 by Clyde Tombaugh.
Alvan Clark, born in Ashfield, Massachusetts, was an American astronomer and telescope maker. He was the descendant of a Cape Cod whaling family of English ancestry.
Leiden Observatory is an astronomical institute of Leiden University, in the Netherlands. Established in 1633 to house the quadrant of Rudolph Snellius, it is the oldest operating university observatory in the world, with the only older still existing observatory being the Vatican Observatory.
Hoher ListObservatorium is an Observatory located on the Hoher List mountain about 60 km south-west of the city of Bonn, close to the town of Daun in the Eifel region (Rhineland-Palatinate)
The Brera Observatory is an astronomical observatory in the Brera district of Milan, Italy. It was built in the historic Palazzo Brera in 1764 by the Jesuit astronomer Roger Boscovich. Following the suppression of the Jesuits by Clement XIV on 21 July 1773, the palace and the observatory passed to the then rulers of northern Italy, the Austrian Habsburg dynasty.
The James Richard Jewett Observatory is an astronomical observatory owned and operated by Washington State University. It is located in Pullman, Washington (US). It houses the largest refracting telescope in the state of Washington. The 12-inch lens was originally ground and polished between 1887 and 1889 by Alvan Clark & Sons for an amateur astronomer, who died before the telescope could be assembled. The lens was put into storage, and was purchased by the university when it came up for auction in the 1950s. Its present dome was dedicated in 1953 and it is named after the father of a supporter of the observatory, Mr. George Jewett of Spokane.
Chamberlin Observatory is an astronomical observatory owned and operated by the University of Denver. It is located in Denver, Colorado (US) in Observatory Park. It is named for Humphrey B. Chamberlin, a Denver real estate magnate who pledged $50,000 in 1888 to build and equip the facility.
Custer Observatory is an astronomical observatory owned and operated by Custer Institute. Located in Southold, New York (US), facing Peconic Bay and Shelter Island, Custer's location has some of the darkest skies on Long Island.
The Yale University Observatory, also known as the Leitner Family Observatory and Planetarium, is an astronomical observatory owned and operated by Yale University, and maintained for student use. It is located in Farnham Memorial Gardens near the corner of Edwards and Prospect Streets, New Haven, Connecticut.
Alvan Clark & Sons was an American maker of optics that became famous for crafting lenses for some of the largest refracting telescopes of the 19th and early 20th centuries. Founded in 1846 in Cambridgeport, Massachusetts, by Alvan Clark, and his sons George Bassett Clark (1827–1891) and Alvan Graham Clark (1832–1897). Five times, the firm built the largest refracting telescopes in the world. The Clark firm gained "worldwide fame and distribution", wrote one author on astronomy in 1899.
Michigan State University Observatory is an astronomical observatory owned and operated by Michigan State University. It is located south of the Michigan State University campus in East Lansing, Michigan (USA), near the corner of Forest Rd and College Rd. It has a Cassegrain telescope in its single dome. Built by Boller and Chivens, the Michigan State University telescope was commissioned in 1969 and entered regular operation in 1970. In 1974, what was at the time a state-of-the-art Raytheon Microcomputer was installed to function as a data gathering and control system. Originally, single channel photoelectric photometry and photography using plates or film were the means of acquiring data. The observatory was closed from 1981 until 1986, at a time when the university was having financial difficulties. It was reopened in the spring of 1986 on the occasion of the return of Comet Halley and has been in regular operation ever since. Since the 1980s, a CCD camera has been employed as the main instrument and the Raytheon computer has been retired. The International Astronomical Union has assigned the MSU Observatory identification code 766.
The University of Illinois Astronomical Observatory, located at 901 S. Mathews Avenue in Urbana, Illinois, on the campus of the University of Illinois Urbana-Champaign, was built in 1896, and was designed by Charles A. Gunn. It was listed on the National Register of Historic Places on November 6, 1986, and on December 20, 1989, was designated a National Historic Landmark.
Mills Observatory is the first purpose-built public astronomical observatory in the UK, located in Dundee, Scotland. Built in 1935, the observatory is classically styled in sandstone and has a distinctive 7 m dome, which houses a Victorian refracting telescope, a small planetarium, and display areas. The dome is one of two made from papier-mâché to survive in the UK, the other being at the Godlee Observatory.
Iso-Heikkilä Observatory is an amateur astronomical observatory used by a local amateur astronomical association, Turun Ursa ry in the Iso-Heikkilä district of Turku, Finland.
Great refractor refers to a large telescope with a lens, usually the largest refractor at an observatory with an equatorial mount. The preeminence and success of this style in observational astronomy defines an era in modern telescopy in the 19th and early 20th century. Great refractors were large refracting telescopes using achromatic lenses. They were often the largest in the world, or largest in a region. Despite typical designs having smaller apertures than reflectors, great refractors offered a number of advantages and were popular for astronomy. It was also popular to exhibit large refractors at international exhibits, and examples of this include the Trophy Telescope at the 1851 Great Exhibition, and the Yerkes Great Refractor at the 1893 World's Fair in Chicago.
The Orchard Hill Observatory is an astronomical observatory located at the highest point on the University of Massachusetts Amherst campus. Constructed in 1965, the observatory is a red brick building with a 16-inch Cassegrain reflector optical telescope. It is used for several community events and is regularly open for public viewing on Thursday nights. Originally the observatory was home to a 20" telescope, given to the department by an avid amateur who lived in central Massachusetts. It was a 1/10 scale model (loosely) of a larger 200" scope. Eventually, a crack was spotted during one of the re-aluminizings of the 20" mirror and the scope was no more. In the meantime, the department had been granted money associated with its move from Hasbrouck to the Grad Research Tower to buy a small telescope and put in on top of the GRC. The GRC had a small "isolation" pad built on its roof, which was supposed to be a mount for the scope, which could be accessed via a small open elevator. However, the GRC had terrible noise and gross vibration problems. The isolation pad never worked and there were too many safety concerns about using the roof of the building for observing. A 16" telescope was later bought from Competition Associates. That scope arrived in 1976 but because of the problems with using the top of the GRC, the scope was never mounted there. In fact, it sat in the basement of Hasbrouck for perhaps 10 years, becoming known as the "Subterranean Telescope". This situation finally led to the 20" being disassembled and the 16" scope being moved to Orchard Hill and installed in the dome there. The 16" was a major improvement in usability. As to what happened to the 20", the mirror may have been stored in the Astronomy Research Facility but the drive was most likely not kept.
Sherzer Observatory is an astronomical observatory located on the campus of Eastern Michigan University. The observatory was established in 1903 with the construction of the new Natural Science Building, in Ypsilanti, Michigan. Following a devastating fire in 1989 a new observatory opened in September 1991 with a 10-inch (250 mm) apochromatic refractor telescope and German equatorial mount centered under a 6-meter dome.
The Astronomy Centre, also known as the Amateur Astronomy Centre, is an astronomical observatory located in northern England which is run by experienced amateur astronomers and is open to the public at certain times.
The Linden Observatory Complex is a heritage-listed former observatory and manufacture of optical precision implements and now residence, museum, observatory, education facility and meeting venue located at 91 – 111 Glossop Road, Linden, City of Blue Mountains, New South Wales, Australia. It was designed and built by Ken Beames from 1938 to 1948. It is also known as K Beames Engineering Co. The property is owned by the Linden Observatory Trust. It was added to the New South Wales State Heritage Register on 5 March 2010.
Meudon Great Refractor is a double telescope with lenses, in Meudon, France. It is a twin refracting telescope built in 1891, with one visual and one photographic, on a single square-tube together on an equatorial mount, inside a dome. The Refractor was built for the Meudon Observatory, and is the largest double doublet refracting telescope in Europe, but about the same size as several telescopes in this period, when this style of telescope was popular. Other large telescopes of a similar type include the James Lick telescope (91.4), Potsdam Great Refractor (80+50 cm), and the Greenwich 28 inch refractor (71.1 cm).
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