Messier-katalogus: Verskil tussen weergawes
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Lyn 8:
| publisher=Students for the Exploration and Development of Space (SEDS)
|accessdate=2010-05-08
|archiveurl=http://web.archive.org/web/20001203150700/http://seds.org/messier/xtra/history/m-cat.html|archivedate=2000-12-03}}</ref> Messier het die ruimte gefynkam vir [[komeet|komete]] en is gefrustreer deur voorwerpe wat soos komete lyk, maar dit nie is nie. Hy het toe ’n katalogus van hulle saamgestel<ref>
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Lyn 39:
|publisher=Students for the Exploration and Development of Space (SEDS)
|accessdate=2010-05-08
|archiveurl=http://web.archive.org/web/19990218182156/http://seds.org/messier/xtra/marathon/marathon.html|archivedate=1999-02-18}}</ref>
== Verwysings ==
Lyn 47:
* [http://www.seds.org/messier/ SEDS se Messier-databasis]
:* [http://www.seds.org/messier/xtra/history/CMessier.html Charles Messier]
* [http://web.archive.org/web/19990420195402/http://seds.org/messier/xtra/history/mcathist.html Geskiedenis van die katalogus]
* [http://zebu.uoregon.edu/messier.html Foto's]
*[http://www.space-and-telescope.com/MessierObjects.aspx Die Messier-katalogus]
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