Messier 21: Perbedaan antara revisi
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{{Cluster
|name = [http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=M21 Messier 21]
|image = [[Berkas:Messier_object_021.jpg|250px|Messier 21]]
|epoch = [[J2000|J2000.0]]
|class = I,3,m
|ra = {{RA|18|04|36}}<ref name="simbad">{{cite web
|title = Basis data astronomi SIMBAD
|work = Hasil untuk NGC 6531
|url = http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+6531&submit=SIMBAD+search
|accessdate = 15-11-2006}}</ref>
|dec = {{DEC|−22|30|}}<ref name="simbad"/>
|dist_ly = 4,25 [[tahun cahaya|ktc]]
|dist_pc = 1.3 [[parsec|kPc]]
|appmag_v = 6,5
|size_v = 13′,0
|mass_kg =
|mass_msol =
|radius_ly =
|v_hb =
|age = 4,6 juta tahun
|notes =
|names = [[NGC]] 6531<ref name="simbad"/>
}}
Baris 39:
[[Kategori:Gugus terbuka]]
[[Kategori:Rasi bintang Sagittarius]]
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[[Kategori:Objek NGC|Messier 021]]
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