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25 relations: Caelum, Dark galaxy, David Merritt, Epoch (astronomy), Galaxy, Gravitational wave, Harvard University, Hubble Space Telescope, IRAS, Light-year, Monthly Notices of the Royal Astronomical Society, Nature (journal), NRAO VLA Sky Survey, Parsec, Quasar, Second, Seyfert galaxy, Starburst region, Supermassive black hole, University of Cambridge, University of Liège, X-ray, 1RXS, 2MASS, 6dF Galaxy Survey.
Caelum
Caelum is a faint constellation in the southern sky, introduced in the 1750s by Nicolas Louis de Lacaille and counted among the 88 modern constellations.
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Dark galaxy
A dark galaxy is a hypothesized galaxy with no, or very few, stars.
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David Merritt
David Merritt is an American astrophysicist and professor at the Rochester Institute of Technology in Rochester, New York.
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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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Galaxy
A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter.
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Gravitational wave
Gravitational waves are the disturbance in the fabric ("curvature") of spacetime generated by accelerated masses and propagate as waves outward from their source at the speed of light.
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Harvard University
Harvard University is a private Ivy League research university in Cambridge, Massachusetts.
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Hubble Space Telescope
The Hubble Space Telescope (HST) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation.
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IRAS
The Infrared Astronomical Satellite (IRAS) was the first-ever space telescope to perform a survey of the entire night sky at infrared wavelengths.
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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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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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Nature (journal)
Nature is a British multidisciplinary scientific journal, first published on 4 November 1869.
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NRAO VLA Sky Survey
The NRAO VLA Sky Survey (NVSS) was an astronomical survey of the Northern Hemisphere carried out by the Very Large Array (VLA) of the National Radio Astronomy Observatory (NRAO), resulting in an astronomical catalogue.
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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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Quasar
A quasar (also known as a QSO or quasi-stellar object) is an extremely luminous active galactic nucleus (AGN).
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Second
The second is the SI base unit of time, commonly understood and historically defined as 1/86,400 of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds each.
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Seyfert galaxy
Seyfert galaxies are one of the two largest groups of active galaxies, along with quasars.
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Starburst region
A starburst is an astrophysical process that involves star formation occurring at a rate that is large compared to the rate that is typically observed.
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Supermassive black hole
A supermassive black hole (SMBH or SBH) is the largest type of black hole, on the order of hundreds of thousands to billions of solar masses, and is found in the centre of almost all currently known massive galaxies.
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University of Cambridge
The University of Cambridge (informally Cambridge University)The corporate title of the university is The Chancellor, Masters, and Scholars of the University of Cambridge.
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University of Liège
The University of Liège (ULiège), in Liège, Wallonia, Belgium, is a major public university in the French Community of Belgium.
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X-ray
X-rays make up X-radiation, a form of electromagnetic radiation.
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1RXS
1RXS is an acronym which is the prefix used for the First ROSAT X-ray Survey (1st ROSAT X-ray Survey).
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2MASS
The Two Micron All-Sky Survey, or 2MASS, was an astronomical survey of the whole sky in the infrared spectrum and one of the most ambitious such projects.
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6dF Galaxy Survey
The 6dF Galaxy Survey (Six-degree-Field Galaxy Survey), 6dF or 6dFGS is a redshift survey conducted by the Anglo-Australian Observatory (AAO) with the 1.2m UK Schmidt Telescope between 2001 and 2009.
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Redirects here:
HE 0450-2958, Naked quasar, Quasar without a Home, The Quasar without a Home, The naked quasar.
References
[1] https://en.wikipedia.org/wiki/HE0450-2958
