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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.| 3879291869 Hipparchic Cycles | to common time units |
|---|---|
| 3879291869 HC | = 3.7215691719069E+19 seconds (s) |
| 3879291869 HC | = 6.2026152865116E+17 minutes (min) |
| 3879291869 HC | = 1.0337692144186E+16 hours (hr) |
| 3879291869 HC | = 4.3073717267442E+14 days (day) |
| 3879291869 HC | = 61533881810631 weeks (wk) |
| 3879291869 HC | = 1180101842943.6 years (yr) |
| 3879291869 HC | = 14161222115323 months (mo) |
| 3879291869 HC | = 117995217879.1 decades (dec) |
| 3879291869 HC | = 11799521787.91 centuries (cent) |
| 3879291869 HC | = 1179952178.791 millenniums (mill) |