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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.| 55 Sidereal Years | to common time units |
|---|---|
| 55 Sy | = 1735698222.72 seconds (s) |
| 55 Sy | = 28928303.712 minutes (min) |
| 55 Sy | = 482138.3952 hours (hr) |
| 55 Sy | = 20089.0998 days (day) |
| 55 Sy | = 2869.8714 weeks (wk) |
| 55 Sy | = 55.038629589041 years (yr) |
| 55 Sy | = 660.46355506849 months (mo) |
| 55 Sy | = 5.5031649420419 decades (dec) |
| 55 Sy | = 0.55031649420419 centuries (cent) |
| 55 Sy | = 0.055031649420419 millenniums (mill) |