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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.| 31 Hipparchic Cycles | to common time units |
|---|---|
| 31 HC | = 297396144000 seconds (s) |
| 31 HC | = 4956602400 minutes (min) |
| 31 HC | = 82610040 hours (hr) |
| 31 HC | = 3442085 days (day) |
| 31 HC | = 491726.42857143 weeks (wk) |
| 31 HC | = 9430.3698630137 years (yr) |
| 31 HC | = 113164.43835616 months (mo) |
| 31 HC | = 942.91738744451 decades (dec) |
| 31 HC | = 94.291738744451 centuries (cent) |
| 31 HC | = 9.4291738744451 millenniums (mill) |