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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 Sidereal Years (Sy) is equal to 31558149.504 seconds, while 1 Galactic Years (gal) = 7.25328E+15 seconds.| 8375809014 Sidereal Years | to common time units |
|---|---|
| 8375809014 Sy | = 2.6432503308076E+17 seconds (s) |
| 8375809014 Sy | = 4.4054172180127E+15 minutes (min) |
| 8375809014 Sy | = 73423620300212 hours (hr) |
| 8375809014 Sy | = 3059317512508.8 days (day) |
| 8375809014 Sy | = 437045358929.83 weeks (wk) |
| 8375809014 Sy | = 8381691815.0927 years (yr) |
| 8375809014 Sy | = 100580301781.11 months (mo) |
| 8375809014 Sy | = 838062882.3106 decades (dec) |
| 8375809014 Sy | = 83806288.23106 centuries (cent) |
| 8375809014 Sy | = 8380628.823106 millenniums (mill) |