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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 Gregorian Years (GY) = 31556952 seconds.| 1 Galactic Years | to common time units |
|---|---|
| 1 gal | = 7.25328E+15 seconds (s) |
| 1 gal | = 1.20888E+14 minutes (min) |
| 1 gal | = 2014800000000 hours (hr) |
| 1 gal | = 83950000000 days (day) |
| 1 gal | = 11992857142.857 weeks (wk) |
| 1 gal | = 230000000 years (yr) |
| 1 gal | = 2760000000 months (mo) |
| 1 gal | = 22997083.069119 decades (dec) |
| 1 gal | = 2299708.3069119 centuries (cent) |
| 1 gal | = 229970.83069119 millenniums (mill) |
| Galactic Years | to Gregorian Years (table conversion) |
|---|---|
| 1 gal | = 229847293.23669 GY |
| 2 gal | = 459694586.47337 GY |
| 3 gal | = 689541879.71006 GY |
| 4 gal | = 919389172.94674 GY |
| 5 gal | = 1149236466.1834 GY |
| 6 gal | = 1379083759.4201 GY |
| 7 gal | = 1608931052.6568 GY |
| 8 gal | = 1838778345.8935 GY |
| 9 gal | = 2068625639.1302 GY |
| 10 gal | = 2298472932.3669 GY |
| 20 gal | = 4596945864.7337 GY |
| 30 gal | = 6895418797.1006 GY |
| 40 gal | = 9193891729.4674 GY |
| 50 gal | = 11492364661.834 GY |
| 60 gal | = 13790837594.201 GY |
| 70 gal | = 16089310526.568 GY |
| 80 gal | = 18387783458.935 GY |
| 90 gal | = 20686256391.302 GY |
| 100 gal | = 22984729323.669 GY |
| 200 gal | = 45969458647.337 GY |
| 300 gal | = 68954187971.006 GY |
| 400 gal | = 91938917294.674 GY |
| 500 gal | = 114923646618.34 GY |
| 600 gal | = 137908375942.01 GY |
| 700 gal | = 160893105265.68 GY |
| 800 gal | = 183877834589.35 GY |
| 900 gal | = 206862563913.02 GY |
| 1000 gal | = 229847293236.69 GY |
| 2000 gal | = 459694586473.37 GY |
| 4000 gal | = 919389172946.74 GY |
| 5000 gal | = 1149236466183.4 GY |
| 7500 gal | = 1723854699275.1 GY |
| 10000 gal | = 2298472932366.9 GY |
| 25000 gal | = 5746182330917.1 GY |
| 50000 gal | = 11492364661834 GY |
| 100000 gal | = 22984729323669 GY |
| 1000000 gal | = 2.2984729323669E+14 GY |
| 1000000000 gal | = 2.2984729323669E+17 GY |