In astronomy, declination is one of the two angles that locate a point on the celestial sphere in the equatorial coordinate system, the other being hour angle. The declination angle is measured north (positive) or south (negative) of the celestial equator, along the hour circle passing through the point in question.
Lincoln is the capital city of the U.S. state of Nebraska and the county seat of Lancaster County. The city covers 100.4 square miles (260.035 km2) with a population of 292,657 in 2021. It is the state's 2nd most populous city and the 73rd-largest in the United States. Lincoln is the economic and cultural anchor of a substantially larger metropolitan area in southeastern Nebraska, the Lincoln Metropolitan and Lincoln-Beatrice Combined Statistical Areas. The statistical area is home to 361,921 people, making it the 104th-largest combined statistical area in the United States.
The equatorial coordinate system is a celestial coordinate system widely used to specify the positions of celestial objects. It may be implemented in spherical or rectangular coordinates, both defined by an origin at the centre of Earth, a fundamental plane consisting of the projection of Earth's equator onto the celestial sphere, a primary direction towards the March equinox, and a right-handed convention.
The Henry Draper Catalogue (HD) is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension (HDE), published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the Henry Draper Extension Charts (HDEC), published from 1937 to 1949 in the form of charts, which gave classifications for 86,933 more stars. In all, 359,083 stars were classified as of August 2017.
Joel Stebbins was an American astronomer who pioneered photoelectric photometry in astronomy. He was director of the University of Illinois Observatory from 1903 to 1922 where he performed innovative work with the selenium cell. In 1922 he became director of the Washburn Observatory at the University of Wisconsin–Madison where he remained until 1948. After 1948, Stebbins continued his research at Lick Observatory until his final retirement in 1958.
The David Dunlap Observatory (DDO) is an astronomical observatory site in Richmond Hill, Ontario, Canada. Established in 1935, it was owned and operated by the University of Toronto until 2008. It was then acquired by the city of Richmond Hill, which provides a combination of heritage preservation, unique recreation opportunities and a celebration of the astronomical history of the site. Its primary instrument is a 74-inch (1.88 m) reflector telescope, at one time the second-largest telescope in the world, and still the largest in Canada. Several other telescopes are also located at the site, which formerly also included a small radio telescope. The scientific legacy of the David Dunlap Observatory continues in the Dunlap Institute for Astronomy & Astrophysics, a research institute at the University of Toronto established in 2008.
The Nebraska State Capitol is the seat of government of the U.S. state of Nebraska and is located in downtown Lincoln. Designed by New York architect Bertram Grosvenor Goodhue in 1920, it was constructed of Indiana limestone from 1922 to 1932. The capitol houses the primary executive and judicial offices of Nebraska and is home to the Nebraska Legislature—the only unicameral state legislature in the United States.
Space Place at Carter Observatory is an observatory in Wellington, New Zealand, located at the top of the Wellington Botanic Garden.
V1059 Sagittarii was a nova, which lit up in 1898 in the constellation Sagittarius. The star reached apparent magnitude 4.5, making it easily visible to the naked eye. It was discovered on 8 March 1898, by Williamina Fleming on a photographic plate taken at the Harvard College Observatory. The discovery plate was an objective prism plate, part of the Henry Draper Memorial Photographs, and Ms Fleming identified it as a nova based on its spectral characteristics.
Ambrose Swasey was an American mechanical engineer, inventor, entrepreneur, manager, astronomer, and philanthropist. With Worcester R. Warner he co-founded the Warner & Swasey Company.
The Amateur Astronomers Association of Pittsburgh (AAAP) is an Astronomical Organization founded on June 9, 1929, by Chester B. Roe and Leo J. Scanlon. Since its establishment, it has grown to have over 500 members and operates two observatories in the Pittsburgh region: the Nicholas E. Wagman Observatory and the Mingo Creek Park Observatory. The club also sponsors many star parties that are open to the public throughout the year.
Behlen Observatory is a research facility and astronomical observatory owned and operated by the astronomy department of the University of Nebraska-Lincoln. It is located in Mead, Nebraska about 38 miles (61 km) northeast of Lincoln, Nebraska and was founded in 1972.
Haystack Observatory is a multidisciplinary radio science center, ionospheric observatory, and astronomical microwave observatory owned by Massachusetts Institute of Technology (MIT). It is in Westford, Massachusetts, in the United States, about 45 kilometers (28 mi) northwest of Boston. The observatory was built by MIT's Lincoln Laboratory for the United States Air Force and was called the Haystack Microwave Research Facility. Construction began in 1960, and the antenna began operating in 1964. In 1970 the facility was transferred to MIT, which then formed the Northeast Radio Observatory Corporation (NEROC) with other universities to operate the site as the Haystack Observatory. As of January 2012, a total of nine institutions participated in NEROC.
Lucile Miller Observatory is an astronomical observatory owned by Catawba County Schools and operated by the Catawba Valley Astronomy Club. It is located on the campus of Maiden Middle School in Maiden, North Carolina (USA), which is the former location of Maiden High School.
John Hyde Sweet was an American newspaper publisher Republican Party politician. He was most notable for his brief service as a member of the United States House of Representatives from Nebraska.
The University of Nebraska Cornhusker Marching Band is the marching band of the University of Nebraska and is part of the Glenn Korff School of Music within the Hixson–Lied College of Fine and Performing Arts. The band consists of 300 students from over 60 different academic majors from across the campus. It performs at all home Husker football games in Memorial Stadium.
Marjorie Mikasen is an abstract, geometric, hard-edge acrylic painter working in Lincoln, Nebraska. She has a degree in studio arts from The University of Minnesota. She is co-author with Mark Griep of the nonfiction book Re'Action!' Chemistry in the Movies.
Phoebe Waterman Haas Public Observatory with a 16–inch telescope is a U.S. public observatory located at the National Air and Space Museum in Washington, D.C.
Lincoln, Nebraska is the home of the state capitol of Nebraska, the University of Nebraska and has history dating back to the mid 1800s. A list of tourist attractions that can be found within the city are as follows.
The following is a timeline of Lincoln, Nebraska history including significant social, political, cultural, and economic events in the history of Lincoln.
