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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.| 397000 Sidereal Years | to common time units |
|---|---|
| 397000 Sy | = 12528585353088 seconds (s) |
| 397000 Sy | = 208809755884.8 minutes (min) |
| 397000 Sy | = 3480162598.08 hours (hr) |
| 397000 Sy | = 145006774.92 days (day) |
| 397000 Sy | = 20715253.56 weeks (wk) |
| 397000 Sy | = 397278.83539726 years (yr) |
| 397000 Sy | = 4767346.0247671 months (mo) |
| 397000 Sy | = 39722.845127102 decades (dec) |
| 397000 Sy | = 3972.2845127102 centuries (cent) |
| 397000 Sy | = 397.22845127102 millenniums (mill) |