Astronomi: Béda antara owahan

* [[Galaksi]] utowo gugusan Lintang

 

* [http://www.as.itb.ac.id/ Departemen Astronomi Institut Teknologi Bandung]

* [http://bosscha.itb.ac.id/ Observatorium Bosscha]

* [http://open-site.org/Science/Astronomy/ Open Encyclopedia Project]

 

* [http://www.ency-astro.com/ Encyclopedia of Astronomy and Astrophysics]

* [http://xxx.lanl.gov/ Los Alamos Astrophysics e-Print Database]