الفرق بين النسختين بتاع: «2009»

{{سنة|20|0|9|19|21|22|23|197|198|199|201|202|203|1}}

 

 

* السنة الدولية لعلم الفلك. <ref>{{cite web|url=http://iau.org/public_press/news/release/iau0606/|title=News Release - IAU0606: The International Astronomical Union announces the International Year of Astronomy 2009|date=October 27, 2006|publisher=International Astronomical Union|accessdate=2008-11-01}}</ref><ref>{{cite web|url=http://astronomy2009.org/|title=The International Year of Astronomy 2009|publisher=IYA2009|accessdate=2008-11-01}}</ref>