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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.| 9481000000 Hipparchic Cycles | to common time units |
|---|---|
| 9481000000 HC | = 9.0955252944E+19 seconds (s) |
| 9481000000 HC | = 1.5159208824E+18 minutes (min) |
| 9481000000 HC | = 2.526534804E+16 hours (hr) |
| 9481000000 HC | = 1.052722835E+15 days (day) |
| 9481000000 HC | = 1.5038897642857E+14 weeks (wk) |
| 9481000000 HC | = 2884172150684.9 years (yr) |
| 9481000000 HC | = 34610065808219 months (mo) |
| 9481000000 HC | = 288380637108.43 decades (dec) |
| 9481000000 HC | = 28838063710.843 centuries (cent) |
| 9481000000 HC | = 2883806371.0843 millenniums (mill) |