Galaksi Kincir Angin: Perbedaan antara revisi

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{{Infobox Galaxy
| name = Galaksi Kincir Angin
| image = [[File:M101 hires STScI-PRC2006-10a.jpg|300px]]
| epoch = [[Epoch (astronomi)#Tahun Julian dan J2000|J2000]]
| constellation name = [[Ursa Major]]
| ra = {{RA|14|03|12.6}}
| dec = {{DEC|+54|20|57}}
| type = SAB(rs)cd
| z = 0.000804
| h_radial_v = {{nowrap|241 ± 2 [[Meter per sekon|km/s]]}}
| dist_ly = 20.9 ± 1.8 M[[Tahun cahaya|tc]] (6.4 ± 0.5 M[[parsec|pc]])
| appmag_v = 7.86
| size_v = 28′.8 × 26′.9
| notes =
| names = [[Objek Messier|Messier]] 101, M101, [[New General Catalogue|NGC]] 5457, [[Uppsala General Catalogue|UGC]] 8981, [[Principal Galaxies Catalogue|PGC]] 50063, [[Atlas of Peculiar Galaxies|Arp]] 26
| references = <ref name="ned">
{{cite web
| title=NASA/IPAC Extragalactic Database
| work=Results for Messier 101
| url=http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=Messier+101&img_stamp=yes&extend=no
| accessdate=2006-12-06
}}</ref><ref name="shappee">
{{cite journal
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|bibcode = 2011ApJ...733..124S |arxiv = 1012.3747 }}</ref><ref name="sinnott1988">
{{cite book
| editor=R. W. Sinnott
| title=The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters by J. L. E. Dreyer
| year=1988
| publisher=Sky Publishing Corporation / Cambridge University Press
| isbn=0-933346-51-4
}}</ref><ref name=ned-dist>
{{cite web
| title=Distance Results for Messier 101
| work=NASA/IPAC Extragalactic Database
|url=http://nedwww.ipac.caltech.edu/cgi-bin/nDistance?name=MESSIER+101
| accessdate=2010-05-01
}}</ref><ref name="SIMBAD-M101">
{{cite web
|title=SIMBAD-M101
| publisher=SIMBAD Astronomical Database
| url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=M101
| accessdate=2009-11-29
}}</ref><ref name=GAXEL>
{{cite journal
|last=Armando |first=Gil de Paz
| coauthors=Boissier; Madore; Seibert; Boselli; et al.
| title=The GALEX Ultraviolet Atlas of Nearby Galaxies
| journal=[[Astrophysical Journal Supplement]]
| volume=173
|issue=2 |pages=185–255 | year=2007
| arxiv=0606440
| doi=10.1086/516636
| bibcode=2007ApJS..173..185G
}}</ref>
}}
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== Galaksi Pendamping ==
M101 memiliki lima galaksi pendamping yang menonjol: [[NGC 5204]], [[NGC 5474]], [[NGC 5477]], [[NGC 5585]], dan [[Holmberg IV]].<ref name="carnegieatlas" >{{cite book | author=A. Sandage, J. Bedke| year=1994| title=Carnegie Atlas of Galaxies| publisher=[[Carnegie Institution of Washington]]| isbn=0-87279-667-1}}</ref> Sebagaimana dinyatakan di atas, interaksi gravitasi antara M101 dan satelitnya mungkin telah memicu pembentukan pola grand design di M101. M101 juga mungkin terdistorsi oleh galaksi pendampingnya NGC 5474.<ref name="carnegieatlas"/> M101 dan galaksi pendamping yang terdiri dari sebagian besar atau mungkin semua [[Grup M101]].<ref name="nbg">{{cite book
| author=R. B. Tully
| year=1988
| title=Nearby Galaxies Catalog
| publisher=[[Cambridge University Press]]
| isbn=0-521-35299-1
}}</ref><ref name="fouqueetal1992">
{{cite journal