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and a photograph taken before 1880 of his. 1847 'Leviathan' 72-in (183-cm) telescope. ... clusters, and an inner, small, tilted gas disk seen in X-rays, which may feed ...
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Jacobi radius rJ. We consider one large and one small, massive stellar systems, circling each ... where gas content is lower (LMC, dwarf Irr, or outer radii of ...
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The center of the Galaxy (nucleus) is a very exotic place, ... A fairly dark and inactive, starved' black hole (m= 2-3e6 Msun) lurks in the center ...
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Rotation and flattening of elliptical galaxies: only a weak ... One more empirical correlation: between rotation and flattening of ellipticals, ...
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Galileo, Hershel, Kapteyn and others. The idea of spiral nebulae as. island universes (Kant) ... Kant (= useful philosophy?) Through the 18th-century ...
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Or is it 'Quintessence'? (a very homogeneous sea ... Others think the quintessence is the answer ( hot', weakly interacting particles) ...
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