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...pal Galaxies Catalogue|PGC]] 024836,<ref name="ned" /> [[Atlas of Peculiar Galaxies|APG]] 7<ref name="simbad" /> ...ed in his [[Atlas of Peculiar Galaxies]] under the category of 'split arm' galaxies.<ref>{{cite web ...

{{Short description|Triplet of galaxies in the constellation Virgo}} ..., [[Principal Galaxies Catalogue|PGC]] 52130, [[Morphological Catalogue of Galaxies|MCG]]+01-37-034, [[Sloan Digital Sky Survey|SDSS]]&nbsp;J143506.38+052124.5 ...

| names = [[Principal Galaxies Catalogue|PGC]] 9892, [[Uppsala General Catalogue Addendum|UGCA]] 034<ref n ...nown to belong to a separate group, the [[IC 342/Maffei Group]]. It was [[galaxies named after people|named]] after [[Paolo Maffei]], who discovered it and th ...

...shift survey|galaxy redshift survey]], with the important distinction that galaxies need to be individually detected and measured, making intensity mapping a c ...ackground light|ionizing UV radiation]]. These are predominantly hosted in galaxies, so the neutral hydrogen signal is effectively a tracer of the galaxy distr ...

...irect-distinguish|Space velocity (astronomy)|radial velocity|proper motion|peculiar velocity}} ...y|satellites]] as well as the internal kinematics of more distant [[Galaxy|galaxies]]. Measurement of the kinematics of stars in different subcomponents of the ...

...st=Palma |first=Christopher |date=2016 |website=ASTRO 801: Planets, Stars, Galaxies, and the Universe |publisher=John A. Dutton e-Education Institute: College ...form is called the ''theoretical Hertzsprung–Russell diagram'' instead. A peculiar characteristic of this form of the H–R diagram is that the temperatures are ...

...16697327}}</ref> Much closer black-hole binaries are likely in single-core galaxies with double emission lines. Examples include SDSS J104807.74+005543.5<ref n Measurements of the [[peculiar velocity]] of the mobile SMBH in the galaxy J0437+2456 indicate that it is ...

...gy]]), much less than the density of ordinary matter or dark matter within galaxies. However, it dominates the universe's mass–energy content because it is uni ...r (baryons). These models were found to be successful at forming realistic galaxies and clusters, but some problems appeared in the late 1980s: in particular, ...

...more are known in the [[Magellanic Clouds]], with more discovered in other galaxies;<ref>{{cite journal|bibcode=2003ASPC..298..237S|title=Cepheids: Observation ...2008>{{cite journal|bibcode=2008ApJ...684..102B|title=Cepheids in External Galaxies. I. The Maser-Host Galaxy NGC 4258 and the Metallicity Dependence of Period ...

...483. S2CID 23362384.</ref> each orbiting its galaxy's [[center of mass]]. Galaxies are categorized according to their visual [[morphology (astronomy)|morpholo ...n for the Alleged Structural Dichotomy between Dwarf and Bright Elliptical Galaxies". The Astronomical Journal. 125 (6): 2936–2950. arXiv:astro-ph/0303391. Bib ...