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13 relations: Arcturus, Boötes, Constellation, Edward Charles Pickering, Epoch (astronomy), Ernst Hartwig, Ernst Zinner, Friedrich August Theodor Winnecke, Galactic plane, International Celestial Reference System, Joseph Ashbrook, Joseph Baxendell, Nova.
Arcturus
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Boötes
Boötes is a constellation in the northern sky, located between 0° and +60° declination, and 13 and 16 hours of right ascension on the celestial sphere.
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Constellation
A constellation is a group of stars that are considered to form imaginary outlines or meaningful patterns on the celestial sphere, typically representing animals, mythological people or gods, mythological creatures, or manufactured devices.
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Edward Charles Pickering
Prof Edward Charles Pickering FRS(For) HFRSE (July 19, 1846 – February 3, 1919) was an American astronomer and physicist and the older brother to William Henry Pickering.
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Epoch (astronomy)
In astronomy, an epoch is a moment in time used as a reference point for some time-varying astronomical quantity, such as the celestial coordinates or elliptical orbital elements of a celestial body, because these are subject to perturbations and vary with time.
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Ernst Hartwig
Carl Ernst Albrecht Hartwig (14 January 1851 in Frankfurt – 3 May 1923 in Bamberg) was a German astronomer.
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Ernst Zinner
Ernst Zinner (2 February 1886 in Goldberg, Silesia – 30 August 1970) was a German astronomer and noted historian of astronomy.
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Friedrich August Theodor Winnecke
Friedrich August Theodor Winnecke (February 5, 1835 in Groß-Heere, near Hannover – December 3, 1897 in Bonn) was a German astronomer.
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Galactic plane
The galactic plane is the plane on which the majority of a disk-shaped galaxy's mass lies.
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International Celestial Reference System
The International Celestial Reference System (ICRS) is the current standard celestial reference system adopted by the International Astronomical Union (IAU).
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Joseph Ashbrook
Joseph Ashbrook (April 4, 1918 – August 4, 1980) was an American astronomer.
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Joseph Baxendell
Joseph Baxendell (1815–1887) was an English meteorologist and astronomer.
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Nova
A nova (plural novae or novas) or classical nova (CN, plural CNe) is a transient astronomical event that causes the sudden appearance of a bright, apparently "new" star, that slowly fades over several weeks or many months.
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