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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 Hipparchic Cycles (HC) is equal to 9593424000 seconds, while 1 Galactic Years (gal) = 7.25328E+15 seconds.| 459000000 Hipparchic Cycles | to common time units |
|---|---|
| 459000000 HC | = 4403381616000000000 seconds (s) |
| 459000000 HC | = 73389693600000000 minutes (min) |
| 459000000 HC | = 1223161560000000 hours (hr) |
| 459000000 HC | = 50965065000000 days (day) |
| 459000000 HC | = 7280723571428.6 weeks (wk) |
| 459000000 HC | = 139630315068.49 years (yr) |
| 459000000 HC | = 1675563780821.9 months (mo) |
| 459000000 HC | = 13961260672.162 decades (dec) |
| 459000000 HC | = 1396126067.2162 centuries (cent) |
| 459000000 HC | = 139612606.72162 millenniums (mill) |