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A report on the finding was presented Tuesday at a national meeting of the American Astronomical Society."Our new figure of 226 million miles is accurate to within 6 percent," Mark Reid, a Harvard-Smithsonian astronomer and leader of the team that made the measurements, said in a statement. Working together as a single unit, the antennae can measure motions in the distant universe with unprecedented accuracy.Astronomers focusing on a star at the center of the Milky Way say they have measured precisely for the first time how long it takes the sun to circle its home galaxy: 226 million years.The last time the sun was at this exact spot of its galactic orbit, dinosaurs ruled the world.Therefore, the stars closer to the center experience a gravitational pull towards the center and they move at greater speeds, since there is more force acting upon them.Conversely, more distant stars have less force acting upon them and in turn, they travel at lower speeds.We are always searching for clocks of greater precision which means that during each cycle of the clock there is little deviation from period to period.We have a periodic motion of the earth with its diurnal rotation on its axis.

If we can consider this Cosmic Year to be a grand cycle, and other periodic motions as minor cycles and certain intersection points as major cycles, we may be able to predict future events using a cyclic time map.

Over a 10-day period, they measured the apparent shift in position of the star against the background of stars far beyond.

The apparent motion of Sagittarius A is very, very small, just one-600,000th of what could be detected with the human eye, the astronomers said.

The Sun's orbital period is determined by the galaxy's mass within the orbit of the Sun.

Newton's explanation of the speed of stars in the Milky Way is as follows.