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WebMar 26, 2014 · ROTATION CURVE OF THE MILKY WAY OUT TO ∼200 kpc 1. INTRODUCTION The circular velocity, , of a test particle at a radial distance r from the center of a mass... 2. … WebNov 28, 2016 · One orbit of the Earth takes one year. Meanwhile, our entire solar system – our sun with its family of planets, moon, asteroid and comets – orbits the center of the … flandersfamily.info calendar
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