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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.| 9165915225 Hipparchic Cycles | to common time units |
|---|---|
| 9165915225 HC | = 8.793251110148E+19 seconds (s) |
| 9165915225 HC | = 1.4655418516913E+18 minutes (min) |
| 9165915225 HC | = 2.4425697528189E+16 hours (hr) |
| 9165915225 HC | = 1.0177373970079E+15 days (day) |
| 9165915225 HC | = 1.4539105671541E+14 weeks (wk) |
| 9165915225 HC | = 2788321635638 years (yr) |
| 9165915225 HC | = 33459859627656 months (mo) |
| 9165915225 HC | = 278796801209.51 decades (dec) |
| 9165915225 HC | = 27879680120.951 centuries (cent) |
| 9165915225 HC | = 2787968012.0951 millenniums (mill) |