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The galactic year, or cosmic year, is the duration of time required for the Sun to orbit once around the center of the Milky Way Galaxy. Estimates of the length of one orbit range from 225 to 250 million terrestrial years.
In relation to the base unit of [time] => (seconds), 1 Metonic Cycles (mc) is equal to 599616000 seconds, while 1 Galactic Years (gal) = 7.25328E+15 seconds.| 1643 Metonic Cycles | to common time units |
|---|---|
| 1643 mc | = 985169088000 seconds (s) |
| 1643 mc | = 16419484800 minutes (min) |
| 1643 mc | = 273658080 hours (hr) |
| 1643 mc | = 11402420 days (day) |
| 1643 mc | = 1628917.1428571 weeks (wk) |
| 1643 mc | = 31239.506849315 years (yr) |
| 1643 mc | = 374874.08219178 months (mo) |
| 1643 mc | = 3123.5544958782 decades (dec) |
| 1643 mc | = 312.35544958782 centuries (cent) |
| 1643 mc | = 31.235544958782 millenniums (mill) |