GermanWikipedia - /page/entry.mu

Micron Document

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</style><div id="coordinates" class="coordinates"><a class="external text" href="https://geohack.toolforge.org/skyhack.php?ra=1.7173333333333&de=13.645055555556&size=0.15333333333333&name=NGC+660&object=NGC%20660&viz1=MCG%252B02-05-013&viz2=PGC%252B6318&viz3=UGC%252B1201&viz5=IRAS%252B01403%252B1323&_globe:=">Datenbanklinks zu NGC 660</a></div>

<th colspan="2" class="ibheader">Galaxie<br><span style="font-size:111%;">NGC 660</span>

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<td colspan="2" class="ibheader" style="border-top:0; white-space:normal;">{{{Kartentext}}}

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<td colspan="2" class="ibimgtxt">Amateuraufnahme

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<td colspan="2" class="ibheader"><a rel="nofollow" class="external text" href="https://aladin.cds.unistra.fr/AladinLite/?target=01%2043%2002.40%20%2B13%2038%2042.2&fov=0.15333333333333&survey=CDS%2FP%2FDSS2%2Fcolor">AladinLite</a>

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<td class="ibleft"><a href="Sternbild" title="Sternbild">Sternbild</a>

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<td><a href="Fische_(Sternbild)" title="Fische (Sternbild)">Fische</a>

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<td colspan="2" class="ibheader"><b>Position</b><br><small><a href="%C3%84quinoktium" title="Äquinoktium">Äquinoktium</a>: <a href="J2000.0" class="mw-redirect" title="J2000.0">J2000.0</a>, <a href="Epoche_(Astronomie)" title="Epoche (Astronomie)">Epoche</a>: J2000.0</small>

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<td class="ibleft"><a href="Rektaszension" title="Rektaszension">Rektaszension</a>

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<td class="ibleft"><a href="Deklination_(Astronomie)" title="Deklination (Astronomie)">Deklination</a>

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<th colspan="2" class="ibheader">Erscheinungsbild

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<td class="ibleft"><a href="Hubble-Sequenz" title="Hubble-Sequenz">Morphologischer Typ</a>

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<td>SB(s)a pec, HII, <a href="Low-ionization_nuclear_emission-line_region" title="Low-ionization nuclear emission-line region">LINER</a>, Sy 2<sup id="cite_ref-NED_1-1" class="reference"><a href="#cite_note-NED-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>

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<td class="ibleft"><a href="Scheinbare_Helligkeit" title="Scheinbare Helligkeit">Helligkeit</a> <small>(visuell)</small>

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<td class="ibleft"><a href="Scheinbare_Helligkeit" title="Scheinbare Helligkeit">Helligkeit</a> <small>(B-Band)</small>

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<td class="ibleft"><a href="Scheinbare_Gr%C3%B6%C3%9Fe" title="Scheinbare Größe">Winkelausdehnung</a>

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<td class="ibleft"><a href="Positionswinkel" title="Positionswinkel">Positionswinkel</a>

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<td class="ibleft"><a href="Bahnneigung" title="Bahnneigung">Inklination</a>

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<td>°

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<td class="ibleft"><a href="Fl%C3%A4chenhelligkeit" title="Flächenhelligkeit">Flächenhelligkeit</a>

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<td>14,1 mag/arcmin²<sup id="cite_ref-SEDS_2-4" class="reference"><a href="#cite_note-SEDS-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>

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<th colspan="2" class="ibheader">Physikalische Daten

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<td class="ibleft"><a href="Galaxienhaufen" title="Galaxienhaufen">Zugehörigkeit</a>

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<td>M74-Gruppe <br> <a href="Lyons_Groups_of_Galaxies" title="Lyons Groups of Galaxies">LGG</a> 29<sup id="cite_ref-NED_1-2" class="reference"><a href="#cite_note-NED-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>

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<td class="ibleft"><a href="Rotverschiebung" title="Rotverschiebung">Rotverschiebung</a>

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<td class="ibleft"><a href="Radialgeschwindigkeit" title="Radialgeschwindigkeit">Radialgeschwindigkeit</a>

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<td class="ibleft"><a href="Hubble-Konstante" title="Hubble-Konstante">Hubbledistanz</a><br><i>H<sub>0</sub> = 73 km/(s • Mpc)</i>

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</style>(42 ± 3)<span class="numericFormat-multiply" style="background-color:var(--color-base, #202122)">e</span><span class="numericFormat-10"><sup>6</sup></span></span> <a href="Lichtjahr" title="Lichtjahr">Lj</a></span><br><span style="font-size:90%">(12,8 ± 0,9) <a href="Parsec" title="Parsec">Mpc</a> <sup id="cite_ref-NED_1-4" class="reference"><a href="#cite_note-NED-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></span>

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<td class="ibleft"><a href="Absolute_Helligkeit" title="Absolute Helligkeit">Absolute Helligkeit</a>

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<td>mag

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<td class="ibleft">Masse

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<td class="ibleft">Durchmesser

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<td class="ibleft"><a href="Metallizit%C3%A4t" title="Metallizität">Metallizität</a> [Fe/H]

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<td>{{{Metallizität}}}

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<th colspan="2" style="background:#DCDCDC; color:#202122;"><a href="Liste_der_Entdecker_des_NGC/IC-Katalogs" class="mw-redirect" title="Liste der Entdecker des NGC/IC-Katalogs">Geschichte</a>

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<td class="ibleft">Entdeckung

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<td style="white-space:normal;">Wilhelm Herschel

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<td class="ibleft">Entdeckungsdatum

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<td>16. Oktober 1784

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<th colspan="2" class="ibheader"><a href="Liste_astronomischer_Kataloge" title="Liste astronomischer Kataloge">Katalogbezeichnungen</a>

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<td colspan="2" style="white-space:normal;"><a href="New_General_Catalogue" title="New General Catalogue">NGC</a> 660 • <a href="Uppsala_General_Catalogue" title="Uppsala General Catalogue">UGC</a> 1201 • <a href="Principal_Galaxies_Catalogue" title="Principal Galaxies Catalogue">PGC</a> 6318 • <a href="Catalogue_of_Galaxies_and_of_Clusters_of_Galaxies" title="Catalogue of Galaxies and of Clusters of Galaxies">CGCG</a> 437-012 • <a href="Morphological_Catalogue_of_Galaxies" title="Morphological Catalogue of Galaxies">MCG</a> +02-05-013 • <a href="Infrared_Astronomical_Satellite" title="Infrared Astronomical Satellite">IRAS</a> 01403+1323 • <a href="General_Catalogue_of_Nebulae_and_Clusters" title="General Catalogue of Nebulae and Clusters">GC</a> 390 • <a href="Liste_astronomischer_Kataloge" title="Liste astronomischer Kataloge">H</a> II 253 • PRC C-13

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<p><b>NGC 660</b> ist eine <a href="Aktiver_Galaxienkern" title="Aktiver Galaxienkern">aktive</a> <a href="Balken-Spiralgalaxie" class="mw-redirect" title="Balken-Spiralgalaxie">Balken-Spiralgalaxie</a> mit hoher <a href="Sternbildungsrate" title="Sternbildungsrate">Sternentstehungsrate</a> im <a href="Sternbild" title="Sternbild">Sternbild</a> <a href="Fische_(Sternbild)" title="Fische (Sternbild)">Fische</a> auf der <a href="Ekliptik" title="Ekliptik">Ekliptik</a>, die etwa 42 Millionen <a href="Lichtjahr" title="Lichtjahr">Lichtjahre</a> von der <a href="Milchstra%C3%9Fe" title="Milchstraße">Milchstraße</a> entfernt ist. <a href="New_General_Catalogue" title="New General Catalogue">NGC</a> 660 ist eine der wenigen <a href="Polarring-Galaxie" title="Polarring-Galaxie">Polarring-Galaxien</a>.

</p><p>Das <a href="Astronomisches_Objekt" title="Astronomisches Objekt">Objekt</a> wurde am 16. Oktober 1784 vom deutsch-britischen <a href="Astronom" title="Astronom">Astronomen</a> <a href="Wilhelm_Herschel" title="Wilhelm Herschel">Wilhelm Herschel</a> entdeckt.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup>

</p><p>2012 wurde bei Beobachtungen mit Radioteleskopen eine plötzlich erhöhte Aktivität gemessen.

Neuere hochauflösende Beobachtungen zeigen eine neue, extrem helle Radioquelle innerhalb von NGC 660. Als Deutung kommt ein wachsendes <a href="Schwarzes_Loch#Supermassereiche_Schwarze_Löcher" title="Schwarzes Loch">supermassives Schwarzes Loch</a> (SMBH) vermutlich mit einer Masse von 20 Millionen Sonnen in Betracht. Erstmals kann nun beobachtet werden, wie ein extrem massereiches Schwarzes Loch seine Aktivität entfaltet.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>

</p>

<div class="gallerytext">Detaillierte Aufnahme des Zentrums, <a href="Hubble-Weltraumteleskop" title="Hubble-Weltraumteleskop">Hubble-Weltraumteleskop</a></div>

</li>

<div class="gallerytext">Aufnahme der <a href="Ultraviolettstrahlung" title="Ultraviolettstrahlung">Ultraviolett</a>-Emission mittels <a href="GALEX" class="mw-redirect" title="GALEX">GALEX</a></div>

</li>

<div class="gallerytext">Aufnahme mithilfe des <a href="Gemini-Teleskop" class="mw-redirect" title="Gemini-Teleskop">Gemini-Teleskops</a></div>

</li>

</ul>

<div class="mw-heading mw-heading2"><h2 id="Literatur">Literatur</h2></div>

<ul><li>König, Michael & Binnewies, Stefan (2019): <i>Bildatlas der Galaxien: Die Astrophysik hinter den Astrofotografien</i>, Stuttgart: Kosmos, S. 321</li></ul>

<div class="mw-heading mw-heading2"><h2 id="Weblinks">Weblinks</h2></div>

<div class="sisterproject" style="margin:0.1em 0 0 0;"><div class="noresize noviewer" style="display:inline-block; line-height:10px; min-width:1.6em; text-align:center;" aria-hidden="true" role="presentation"><span class="mw-default-size" typeof="mw:File"><span title="Commons"></span></span></div><b><span class=""><a class="external text" href="https://commons.wikimedia.org/wiki/Category:NGC_660?uselang=de"><span lang="en">Commons</span>: NGC 660</a></span></b> – Sammlung von Bildern, Videos und Audiodateien</div>

<ul><li><a rel="nofollow" class="external text" href="http://www.gemini.edu/node/11896">Rare Polar-Ring Galaxy Captured in New Image</a>, NGC 660 aufgenommen mit dem 8-m-<a href="Gemini-Teleskop" class="mw-redirect" title="Gemini-Teleskop">Gemini-Teleskop</a></li>

<li><a rel="nofollow" class="external text" href="http://www.atnf.csiro.au/people/bkoribal/min_lecture/node8.html">NGC 660 is a rather peculiar galaxy</a></li>

<li><a rel="nofollow" class="external text" href="https://aasarchives.blob.core.windows.net/archives/BAAS/v27n4/aas187/S049010.html">Compact Radio Sources in NGC 660</a></li>

<li><a rel="nofollow" class="external text" href="http://www.starobserver.org/ap110122.html">Polarring-Galaxie NGC 660</a> – <a href="Astronomy_Picture_of_the_Day" title="Astronomy Picture of the Day">Astronomy Picture of the Day</a> vom 22. Januar 2011.</li>

<li><a rel="nofollow" class="external text" href="http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+660">SIMBAD Astronomical Database</a></li>

<li><a href="Spektrum.de" title="Spektrum.de">Spektrum.de</a>: Amateuraufnahmen <a rel="nofollow" class="external autonumber" href="https://www.spektrum.de/alias/wunder-des-weltalls/die-polarring-galaxie-ngc-660-ein-exot-unter-den-galaxien/2086275">[1]</a></li>

<li><a rel="nofollow" class="external text" href="https://esahubble.org/images/potw1348a/">A bizarre cosmic rarity: NGC 660 (engl.)</a></li>

<li><a rel="nofollow" class="external text" href="http://cdsportal.u-strasbg.fr/?target=NGC%20660">CDS Portal</a></li></ul>

<div class="mw-heading mw-heading2"><h2 id="Einzelnachweise">Einzelnachweise</h2></div>

<li id="cite_note-NED-1"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-NED_1-0">a</a></sup> <sup><a href="#cite_ref-NED_1-1">b</a></sup> <sup><a href="#cite_ref-NED_1-2">c</a></sup> <sup><a href="#cite_ref-NED_1-3">d</a></sup> <sup><a href="#cite_ref-NED_1-4">e</a></sup></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+660&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES">NASA/IPAC EXTRAGALACTIC DATABASE</a></span>

</li>

</li>

<li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://webviz.u-strasbg.fr/viz-bin/VizieR-6?-out.form=%2bH&-source=41000047&-out.all&-corr=PFK=LGG&-out.max=9999&LGG=29">VizieR</a></span>

</li>

</li>

<li id="cite_note-5"><span class="mw-cite-backlink"><a href="#cite_ref-5">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://cseligman.com/text/atlas/ngc6a.htm#660">Seligman</a></span>

</li>

<li id="cite_note-6"><span class="mw-cite-backlink"><a href="#cite_ref-6">↑</a></span> <span class="reference-text"><span class="cite">Andreas Wilkens (anw): <a rel="nofollow" class="external text" href="http://heise.de/-2743638"><i>Astronomen beobachten erwachendes Schwarzes Loch.</i></a> In: <i><a href="Heise_online" title="Heise online">Heise online</a>.</i> 9. Juli 2015,<span class="Abrufdatum"> abgerufen am 9. Juli 2015</span>.</span><span style="display: none;" class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2Fde.wikipedia.org%3ANGC+660&rft.title=Astronomen+beobachten+erwachendes+Schwarzes+Loch&rft.description=Astronomen+beobachten+erwachendes+Schwarzes+Loch&rft.identifier=http%3A%2F%2Fheise.de%2F-2743638&rft.creator=Andreas+Wilkens+%28anw%29&rft.date=2015-07-09"> </span></span>

</li>

</ol>

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<div class="klappleiste-kopf">Im <a href="New_General_Catalogue" title="New General Catalogue">New General Catalogue</a> (NGC) benachbarte Objekte</div>

<p><a href="Liste_der_NGC-Objekte" title="Liste der NGC-Objekte">Gesamtliste</a><br>

</p>

<hr>

<p><a href="NGC_636" title="NGC 636">NGC 636</a> |

<a href="NGC_637" title="NGC 637">NGC 637</a> |

<a href="NGC_638" title="NGC 638">NGC 638</a> |

<a href="NGC_639" title="NGC 639">NGC 639</a> |

<a href="NGC_640" title="NGC 640">NGC 640</a> |

<a href="NGC_641" title="NGC 641">NGC 641</a> |

<a href="NGC_642" title="NGC 642">NGC 642</a> |

<a href="NGC_643" title="NGC 643">NGC 643</a> |

<a href="NGC_644" title="NGC 644">NGC 644</a> |

<a href="NGC_645" title="NGC 645">NGC 645</a> |

<a href="NGC_646" title="NGC 646">NGC 646</a> |

<a href="NGC_647" title="NGC 647">NGC 647</a> |

<a href="NGC_648" title="NGC 648">NGC 648</a> |

<a href="NGC_649" title="NGC 649">NGC 649</a> |

<a href="NGC_650" class="mw-redirect" title="NGC 650">NGC 650</a> |

<a href="NGC_651" class="mw-redirect" title="NGC 651">NGC 651</a> |

<a href="NGC_652" title="NGC 652">NGC 652</a> |

<a href="NGC_653" title="NGC 653">NGC 653</a> |

<a href="NGC_654" title="NGC 654">NGC 654</a> |

<a href="NGC_655" title="NGC 655">NGC 655</a> |

<a href="NGC_656" title="NGC 656">NGC 656</a> |

<a href="NGC_657" title="NGC 657">NGC 657</a> |

<a href="NGC_658" title="NGC 658">NGC 658</a> |

<a href="NGC_659" title="NGC 659">NGC 659</a> |

<b>NGC 660</b> |

<a href="NGC_661" title="NGC 661">NGC 661</a> |

<a href="NGC_662" title="NGC 662">NGC 662</a> |

<a href="NGC_663" title="NGC 663">NGC 663</a> |

<a href="NGC_664" title="NGC 664">NGC 664</a> |

<a href="NGC_665" title="NGC 665">NGC 665</a> |

<a href="NGC_666" title="NGC 666">NGC 666</a> |

<a href="NGC_667" title="NGC 667">NGC 667</a> |

<a href="NGC_668" title="NGC 668">NGC 668</a> |

<a href="NGC_669" title="NGC 669">NGC 669</a> |

<a href="NGC_670" title="NGC 670">NGC 670</a> |

<a href="NGC_671" title="NGC 671">NGC 671</a> |

<a href="NGC_672" title="NGC 672">NGC 672</a> |

<a href="NGC_673" title="NGC 673">NGC 673</a> |

<a href="NGC_674" class="mw-redirect" title="NGC 674">NGC 674</a> |

<a href="NGC_675" title="NGC 675">NGC 675</a> |

<a href="NGC_676" title="NGC 676">NGC 676</a> |

<a href="NGC_677" title="NGC 677">NGC 677</a> |

<a href="NGC_678" title="NGC 678">NGC 678</a> |

<a href="NGC_679" title="NGC 679">NGC 679</a> |

<a href="NGC_680" title="NGC 680">NGC 680</a> |

<a href="NGC_681" title="NGC 681">NGC 681</a> |

<a href="NGC_682" title="NGC 682">NGC 682</a> |

<a href="NGC_683" title="NGC 683">NGC 683</a> |

<a href="NGC_684" title="NGC 684">NGC 684</a> |

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