Home›Mathematics›In Group›Galactic And Extragalactic Astronomy›All Galactic And Extragalactic AstronomyBrowse ByAll Galactic And Extragalactic AstronomyFactsAll Galactic And Extragalactic AstronomySourcesComments (0)Reader Challenges (0)FactsComparisonPrimary Research ApproachWell-attestedObservational 1All Galactic And Extragalactic AstronomyFilter Results10 entriesDisciplineAllAstronomy (4)Field (legacy)AllAstronomy (6)Astronomy, Astrophysics (1)Astrophysics (2)EraAll1875 (1)1885 (1)1893 (1)1928 (1)1935 (1)1943 (1)1948 (1)1967 (1)1970 (1)NationalityAllArgentina (1)Germany (1)United Kingdom (2)United States (3)BrowseCompareSelect all 10Amina HelmiAstronomyAndrew FabianAstronomyDonald Lynden-BellAstronomyFrank ShuAstronomyHarlow ShapleyAstronomyRodrigo IbataAstronomySimon WhiteAstronomyVera RubinAstronomyVesto SlipherAstronomyWalter BaadeAstronomySources1. Extragalactic Astronomy (Wikipedia)tier 2WikipediaExtragalactic astronomy, methodology paragraphQuote, Extragalactic astronomy, methodology paragraphAstronomer's methodologies depend, from theoretical to observation based methods.View the SourceComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.