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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 Galactic Years (gal) is equal to 7.25328E+15 seconds, while 1 Hipparchic Cycles (HC) = 9593424000 seconds.| 4000 Galactic Years | to common time units |
|---|---|
| 4000 gal | = 2.901312E+19 seconds (s) |
| 4000 gal | = 4.83552E+17 minutes (min) |
| 4000 gal | = 8.0592E+15 hours (hr) |
| 4000 gal | = 3.358E+14 days (day) |
| 4000 gal | = 47971428571429 weeks (wk) |
| 4000 gal | = 920000000000 years (yr) |
| 4000 gal | = 11040000000000 months (mo) |
| 4000 gal | = 91988332276.474 decades (dec) |
| 4000 gal | = 9198833227.6474 centuries (cent) |
| 4000 gal | = 919883322.76474 millenniums (mill) |