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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 Galactic Years (gal) is equal to 7.25328E+15 seconds, while 1 Sidereal Years (Sy) = 31558149.504 seconds.| 45 Galactic Years | to common time units |
|---|---|
| 45 gal | = 3.263976E+17 seconds (s) |
| 45 gal | = 5.43996E+15 minutes (min) |
| 45 gal | = 90666000000000 hours (hr) |
| 45 gal | = 3777750000000 days (day) |
| 45 gal | = 539678571428.57 weeks (wk) |
| 45 gal | = 10350000000 years (yr) |
| 45 gal | = 124200000000 months (mo) |
| 45 gal | = 1034868738.1103 decades (dec) |
| 45 gal | = 103486873.81103 centuries (cent) |
| 45 gal | = 10348687.381103 millenniums (mill) |