Is it true ...our solar system has only made 21-22 laps around the center of our galaxy ?
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And people complain we're fat as a Christmas goose? lol
The Sun and its planets take a period of 225 million years to revolve around the galactic center. The time it takes for each orbit is sometimes referred to as a cosmic year or a galactic year. The Sun has completed about 20 orbits since the solar system was formed. For each orbit, the Sun traveled 150,000 light years of distance.
That's about right, actually...it takes about 200 million years to go around the galaxy and the sun is about 5 billion years old.
Yes. See below..
Based on an analysis of the geological history, tectonic and biotic events, climate evolution, and changes in the atmosphere, hydrosphere, and terrain, the length of the galactic year is tentatively estimated at 215 million years. Every galactic year consists of one 30-million-year cycle corresponding to the perigalacteum position of the solar system, one 85-million-year cycle corresponding to the apogalacteum position, and two medium periods lasting 50 million years each..☺
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