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List Of Globular Clusters
This is a list of globular clusters. The apparent magnitude does not include an extinction correction. Milky Way These are globular clusters within the halo of the Milky Way galaxy. The diameter is in minutes of arc as seen from Earth. For reference, the J2000 epoch celestial coordinates of the Galactic Center are right ascension , declination . A high proportion of globular clusters are located in the Ophiuchus and Sagittarius constellations, both of which lie in the direction of the galactic core. Local Group See also * Lists of astronomical objects References Galactic Globular Clusters Database from Marco Castellani (Astronomical Observatory of Rome, Italy) VizieR VII/202 – Globular Clusters in the Milky Way (Harris, 1997) Richard Powell Andrés Valencia and Arnaldo Arnal * Djorgovski, S., and Meylan, G. 1993, in "Structure and Dynamics of Globular Clusters", ASP Conf. Ser. vol. 50, p. 32 External links LMC Clusters database University of Cambridge. * ...
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Globular Cluster VVV CL001
A globular cluster is a spheroidal conglomeration of stars. Globular clusters are bound together by gravity, with a higher concentration of stars towards their centers. They can contain anywhere from tens of thousands to many millions of member stars. Their name is derived from Latin (small sphere). Globular clusters are occasionally known simply as "globulars". Although one globular cluster, Omega Centauri, was observed in antiquity and long thought to be a star, recognition of the clusters' true nature came with the advent of telescopes in the 17th century. In early telescopic observations globular clusters appeared as fuzzy blobs, leading French astronomer Charles Messier to include many of them in his catalog of astronomical objects that he thought could be mistaken for comets. Using larger telescopes, 18th-century astronomers recognized that globular clusters are groups of many individual stars. Early in the 20th century the distribution of globular clusters in the sky w ...
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Minute And Second Of Arc
A minute of arc, arcminute (arcmin), arc minute, or minute arc, denoted by the symbol , is a unit of angular measurement equal to of one degree. Since one degree is of a turn (or complete rotation), one minute of arc is of a turn. The nautical mile (nmi) was originally defined as the arc length of a minute of latitude on a spherical Earth, so the actual Earth circumference is very near . A minute of arc is of a radian. A second of arc, arcsecond (arcsec), or arc second, denoted by the symbol , is of an arcminute, of a degree, of a turn, and (about ) of a radian. These units originated in Babylonian astronomy as sexagesimal subdivisions of the degree; they are used in fields that involve very small angles, such as astronomy, optometry, ophthalmology, optics, navigation, land surveying, and marksmanship. To express even smaller angles, standard SI prefixes can be employed; the milliarcsecond (mas) and microarcsecond (μas), for instance, are commonly used in astr ...
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FSR 1758
FSR 1758 is a large and bright but heavily obscured globular cluster belonging to the Milky Way galaxy. It is located at a distance of about 11.5 kpc from the Sun and about 3.7 kpc from the center of the galaxy. As FSR 1758 lies behind the galactic bulge, it is heavily obscured by the foreground stars and dust. It was first noticed in 2007 in 2MASS data and believed to be an open cluster, until data from the Gaia mission revealed in 2018 that it is a globular cluster. The size and brightness of FSR 1758 may be comparable to or exceed that of the Omega Centauri cluster, which is widely believed to be the nucleus of a dwarf galaxy that merged into Milky Way in the past. Therefore, FSR 1758 may be the nucleus of dwarf galaxy tentatively named Scorpius Dwarf galaxy. It may also be similar to another globular cluster, Messier 54, which is known to be the nucleus of Sagittarius Dwarf Spheroidal Galaxy The Sagittarius Dwarf Spheroidal Galaxy (Sgr dSph), also known as t ...
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Norma (constellation)
Norma is a small constellation in the Southern Celestial Hemisphere between Ara and Lupus, one of twelve drawn up in the 18th century by French astronomer Nicolas-Louis de Lacaille and one of several depicting scientific instruments. Its name is Latin for normal, referring to a right angle, and is variously considered to represent a rule, a carpenter's square, a set square or a level. It remains one of the 88 modern constellations. Four of Norma's brighter stars—Gamma, Delta, Epsilon and Eta—make up a square in the field of faint stars. Gamma2 Normae is the brightest star with an apparent magnitude of 4.0. Mu Normae is one of the most luminous stars known, with a luminosity between a quarter million and one million times that of the Sun. Four star systems are known to harbour planets. The Milky Way passes through Norma, and the constellation contains eight open clusters visible to observers with binoculars. The constellation also hosts Abell 3627, also called th ...
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FSR 1716
FSR may refer to: Broadcasting * Fox Sports Radio, an American radio network *Fox Sports Racing, a U.S. motorsports TV channel * Yle FSR, a Finnish radio network Entertainment * ''Flower, Sun, and Rain'', a video game from Grasshopper Manufacture * Folk Soul Revival, an American country music band * Forces of Satan Records, a defunct Norwegian record label * Fresh Sound, a Spanish record label * Fresh Sounds Records, an defunct American record label * Full Surface Records, an American record label Politics * Financial Services Roundtable, an American lobby group * Former Soviet republics * Friends of Soviet Russia, an American friendship organization Science and technology * Fractional synthetic rate * Finite-state recognizer * Fisheye State Routing * ''Flood Studies Report'', a hydrological text * Force-sensing resistor * Free spectral range * FidelityFX Super Resolution, part of AMD's FidelityFX toolset Scouting * Federation of Scouts of Russia * Forestburg Sc ...
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Cassiopeia (constellation)
Cassiopeia () is a constellation in the northern sky named after the vain queen Cassiopeia, mother of Andromeda, in Greek mythology, who boasted about her unrivaled beauty. Cassiopeia was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy, and it remains one of the 88 modern constellations today. It is easily recognizable due to its distinctive ' W' shape, formed by five bright stars. Cassiopeia is located in the northern sky and from latitudes above 34°N it is visible year-round. In the (sub)tropics it can be seen at its clearest from September to early November, and at low southern, tropical, latitudes of less than 25°S it can be seen, seasonally, low in the North. At magnitude 2.2, Alpha Cassiopeiae, or Schedar, is generally the brightest star in Cassiopeia, though it is occasionally outshone by the variable Gamma Cassiopeiae, which has reached magnitude 1.6. The constellation hosts some of the most luminous stars known, including the yello ...
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FSR 584
FSR may refer to: Broadcasting * Fox Sports Radio, an American radio network *Fox Sports Racing, a U.S. motorsports TV channel * Yle FSR, a Finnish radio network Entertainment * ''Flower, Sun, and Rain'', a video game from Grasshopper Manufacture * Folk Soul Revival, an American country music band * Forces of Satan Records, a defunct Norwegian record label * Fresh Sound, a Spanish record label * Fresh Sounds Records, an defunct American record label * Full Surface Records, an American record label Politics * Financial Services Roundtable, an American lobby group * Former Soviet republics * Friends of Soviet Russia, an American friendship organization Science and technology * Fractional synthetic rate * Finite-state recognizer * Fisheye State Routing * ''Flood Studies Report'', a hydrological text * Force-sensing resistor * Free spectral range * FidelityFX Super Resolution, part of AMD's FidelityFX toolset Scouting * Federation of Scouts of Russia * Forestburg Sc ...
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Cygnus (constellation)
Cygnus is a northern constellation on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan. Cygnus is one of the most recognizable constellations of the northern summer and autumn, and it features a prominent asterism known as the Northern Cross (in contrast to the Southern Cross). Cygnus was among the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations. Cygnus contains Deneb (ذنب, translit. ''ḏanab,'' tail)one of the brightest stars in the night sky and the most distant first-magnitude staras its "tail star" and one corner of the Summer Triangle. It also has some notable X-ray sources and the giant stellar association of Cygnus OB2. Cygnus is also known as the Northern Cross. One of the stars of this association, NML Cygni, is one of the largest stars currently known. The constellation is also home to Cygnus X-1, a distant X-ray binary containing a supergiant and unseen m ...
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FSR 190
FSR may refer to: Broadcasting * Fox Sports Radio, an American radio network *Fox Sports Racing, a U.S. motorsports TV channel * Yle FSR, a Finnish radio network Entertainment * ''Flower, Sun, and Rain'', a video game from Grasshopper Manufacture * Folk Soul Revival, an American country music band * Forces of Satan Records, a defunct Norwegian record label * Fresh Sound, a Spanish record label * Fresh Sounds Records, an defunct American record label * Full Surface Records, an American record label Politics * Financial Services Roundtable, an American lobby group * Former Soviet republics * Friends of Soviet Russia, an American friendship organization Science and technology * Fractional synthetic rate * Finite-state recognizer * Fisheye State Routing * ''Flood Studies Report'', a hydrological text * Force-sensing resistor * Free spectral range * FidelityFX Super Resolution, part of AMD's FidelityFX toolset Scouting * Federation of Scouts of Russia * Forestburg Sc ...
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FSR 25
FSR may refer to: Broadcasting * Fox Sports Radio, an American radio network *Fox Sports Racing, a U.S. motorsports TV channel * Yle FSR, a Finnish radio network Entertainment * ''Flower, Sun, and Rain'', a video game from Grasshopper Manufacture * Folk Soul Revival, an American country music band * Forces of Satan Records, a defunct Norwegian record label * Fresh Sound, a Spanish record label * Fresh Sounds Records, an defunct American record label * Full Surface Records, an American record label Politics * Financial Services Roundtable, an American lobby group * Former Soviet republics * Friends of Soviet Russia, an American friendship organization Science and technology * Fractional synthetic rate * Finite-state recognizer * Fisheye State Routing * ''Flood Studies Report'', a hydrological text * Force-sensing resistor * Free spectral range * FidelityFX Super Resolution, part of AMD's FidelityFX toolset Scouting * Federation of Scouts of Russia * Forestburg Sc ...
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FSR 19
FSR may refer to: Broadcasting * Fox Sports Radio, an American radio network *Fox Sports Racing, a U.S. motorsports TV channel * Yle FSR, a Finnish radio network Entertainment * ''Flower, Sun, and Rain'', a video game from Grasshopper Manufacture * Folk Soul Revival, an American country music band * Forces of Satan Records, a defunct Norwegian record label * Fresh Sound, a Spanish record label * Fresh Sounds Records, an defunct American record label * Full Surface Records, an American record label Politics * Financial Services Roundtable, an American lobby group * Former Soviet republics * Friends of Soviet Russia, an American friendship organization Science and technology * Fractional synthetic rate * Finite-state recognizer * Fisheye State Routing * ''Flood Studies Report'', a hydrological text * Force-sensing resistor * Free spectral range * FidelityFX Super Resolution, part of AMD's FidelityFX toolset Scouting * Federation of Scouts of Russia * Forestburg Sc ...
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FSR 9
FSR may refer to: Broadcasting * Fox Sports Radio, an American radio network *Fox Sports Racing, a U.S. motorsports TV channel * Yle FSR, a Finnish radio network Entertainment * ''Flower, Sun, and Rain'', a video game from Grasshopper Manufacture * Folk Soul Revival, an American country music band * Forces of Satan Records, a defunct Norwegian record label * Fresh Sound, a Spanish record label * Fresh Sounds Records, an defunct American record label * Full Surface Records, an American record label Politics * Financial Services Roundtable, an American lobby group * Former Soviet republics * Friends of Soviet Russia, an American friendship organization Science and technology * Fractional synthetic rate * Finite-state recognizer * Fisheye State Routing * ''Flood Studies Report'', a hydrological text * Force-sensing resistor * Free spectral range * FidelityFX Super Resolution, part of AMD's FidelityFX toolset Scouting * Federation of Scouts of Russia * Forestburg Sc ...
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