25 relations: Absolute magnitude, Andromeda (constellation), Andromeda Galaxy, Apparent magnitude, Charles T. Kowal, Dwarf galaxy, Epoch (astronomy), Globular cluster, John Huchra, Light-year, Local Group, Mayall's Object, Messier 54, Metallicity, Monthly Notices of the Royal Astronomical Society, NASA, Nicholas Mayall, Olin J. Eggen, Omega Centauri, Palomar Observatory, Parsec, Sidney van den Bergh, Solar mass, Star, Wallace L. W. Sargent.
Absolute magnitude
Absolute magnitude is a measure of the luminosity of a celestial object, on a logarithmic astronomical magnitude scale.
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Andromeda (constellation)
Andromeda is one of the 48 constellations listed by the 2nd-century Greco-Roman astronomer Ptolemy and remains one of the 88 modern constellations.
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Andromeda Galaxy
The Andromeda Galaxy, also known as Messier 31, M31, or NGC 224, is a spiral galaxy approximately 780 kiloparsecs (2.5 million light-years) from Earth, and the nearest major galaxy to the Milky Way.
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Apparent magnitude
The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.
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Charles T. Kowal
Charles Thomas Kowal (November 8, 1940 – November 28, 2011) was an American astronomer known for his observations and discoveries in the Solar System.
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Dwarf galaxy
A dwarf galaxy is a small galaxy composed of about 100 million up to several billion stars, a small number compared to the Milky Way's 200–400 billion stars.
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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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Globular cluster
A globular cluster is a spherical collection of stars that orbits a galactic core as a satellite.
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John Huchra
John Peter Huchra (December 23, 1948 – October 8, 2010) was an American astronomer and professor.
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Light-year
The light-year is a unit of length used to express astronomical distances and measures about 9.5 trillion kilometres or 5.9 trillion miles.
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Local Group
The Local Group is the galaxy group that includes the Milky Way.
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Mayall's Object
Mayall's Object (also classified under the Atlas of Peculiar Galaxies as Arp 148) is the result of two colliding galaxies located 500 million light years away within the constellation of Ursa Major.
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Messier 54
Messier 54 (also known as M54 or NGC 6715) is a globular cluster in the constellation Sagittarius.
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Metallicity
In astronomy, metallicity is used to describe the abundance of elements present in an object that are heavier than hydrogen or helium.
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Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal covering research in astronomy and astrophysics.
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NASA
The National Aeronautics and Space Administration (NASA) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.
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Nicholas Mayall
Nicholas Ulrich Mayall (May 9, 1906 – January 5, 1993) was an American observational astronomer.
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Olin J. Eggen
Olin Jeuck Eggen (July 9, 1919 – October 2, 1998) was an American astronomer.
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Omega Centauri
Omega Centauri (ω Cen or NGC 5139) is a globular cluster in the constellation of Centaurus that was first identified as a non-stellar object by Edmond Halley in 1677.
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Palomar Observatory
Palomar Observatory is an astronomical observatory located in San Diego County, California, United States, southeast of Los Angeles, California, in the Palomar Mountain Range.
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Parsec
The parsec (symbol: pc) is a unit of length used to measure large distances to astronomical objects outside the Solar System.
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Sidney van den Bergh
Sidney Van den Bergh, OC, FRS (born 20 May 1929 in Wassenaar) is a retired Canadian astronomer.
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Solar mass
The solar mass is a standard unit of mass in astronomy, equal to approximately.
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Star
A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.
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Wallace L. W. Sargent
Wallace Leslie William Sargent FRS (February 15, 1935 – October 29, 2012) was a British-born American astronomer and the Ira S. Bowen Professor of Astronomy at California Institute of Technology.
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Redirects here:
Andromeda's Cluster, GSC 2788:2139, HBK 0-1, M31 G1, M31GC J003247+393440, Mayall 2, Mayall2, NGC-224-G1, SKHB 1, SKHB1.
References
[1] https://en.wikipedia.org/wiki/Mayall_II