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Documents 30 October 2001Astronomy 102, Fall 20011 Image: wide-angle photo and overlay key of the Sagittarius....

Today in Astronomy 102: black hole observations, volume 2 From last time: GRO J1655-40, the best case for black-hole detection. The center of the Milky Way Galaxy: solid…

Documents Unit 2: Very Small and Far Away: Measuring and Observing Extremes Resembling a gigantic hubcap in...

Unit 2: Very Small and Far Away: Measuring and Observing Extremes Resembling a gigantic hubcap in space, a 3,700-light-year-wide dust disk encircles a 300-million- solar-mass…

Documents Today in Astronomy 102: black hole observations, volume 2

Today in Astronomy 102: black hole observations, volume 2 From last time: GRO J1655-40, the best case for black-hole detection. The center of the Milky Way Galaxy: solid…

Documents Spiral Galaxies

Spiral Galaxies Elliptical Galaxies Irregular Galaxies Classification of Galaxies Properties of Galaxies Other galaxy types : Peculiar, Interacting, Ring, Starburst, Dwarf,…