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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.| 5659054978 Hipparchic Cycles | to common time units |
|---|---|
| 5659054978 HC | = 5.4289713843265E+19 seconds (s) |
| 5659054978 HC | = 9.0482856405441E+17 minutes (min) |
| 5659054978 HC | = 1.5080476067574E+16 hours (hr) |
| 5659054978 HC | = 6.2835316948223E+14 days (day) |
| 5659054978 HC | = 89764738497461 weeks (wk) |
| 5659054978 HC | = 1721515532828 years (yr) |
| 5659054978 HC | = 20658186393936 months (mo) |
| 5659054978 HC | = 172129720492.28 decades (dec) |
| 5659054978 HC | = 17212972049.228 centuries (cent) |
| 5659054978 HC | = 1721297204.9228 millenniums (mill) |