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== Nexus externi ==
{{SIMBAD}}
*Freeman, Jay Reynolds. [http://www.astronomy-mall.com/Adventures.In.Deep.Space/crossobsrpt.htm "Einstein's Cross."]
*[http://www.google.com/sky/#latitude=3.3628023177688036&longitude=160.12384414672852&zoom=13&Spitzer=0.00&ChandraXO=0.00&Galex=0.00&IRAS=0.00&WMAP=0.00&Cassini=0.00&slide=1&mI=-1&oI=-1 Caelum Google.]
*[http://www.
*[http://
*[http://antwrp.gsfc.nasa.gov/apod/ap070311.html Photographemata Crucis Einsteinianae.] ''Astronomy Picture of the Day,'' 11 Martii 2007
{{sky|22|40|31.0|+|03|21|30.3|4000000000|DSS2}}
[[Categoria:Astrophysica]]
[[Categoria:Pegasus (constellatio)]]
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