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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.
A decade is a period of 10 years. The word is derived from the Ancient Greek: δεκάς (transliteration=dekas), which means a group of ten. Other words for spans of years also c ..more definition+
In relation to the base unit of [time] => (seconds), 1 Galactic Years (gal) is equal to 7.25328E+15 seconds, while 1 Decades (dec) = 315400000 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 Decades (table conversion) |
|---|---|
| 1 gal | = 22997083.069119 dec |
| 2 gal | = 45994166.138237 dec |
| 3 gal | = 68991249.207356 dec |
| 4 gal | = 91988332.276474 dec |
| 5 gal | = 114985415.34559 dec |
| 6 gal | = 137982498.41471 dec |
| 7 gal | = 160979581.48383 dec |
| 8 gal | = 183976664.55295 dec |
| 9 gal | = 206973747.62207 dec |
| 10 gal | = 229970830.69119 dec |
| 20 gal | = 459941661.38237 dec |
| 30 gal | = 689912492.07356 dec |
| 40 gal | = 919883322.76474 dec |
| 50 gal | = 1149854153.4559 dec |
| 60 gal | = 1379824984.1471 dec |
| 70 gal | = 1609795814.8383 dec |
| 80 gal | = 1839766645.5295 dec |
| 90 gal | = 2069737476.2207 dec |
| 100 gal | = 2299708306.9119 dec |
| 200 gal | = 4599416613.8237 dec |
| 300 gal | = 6899124920.7356 dec |
| 400 gal | = 9198833227.6474 dec |
| 500 gal | = 11498541534.559 dec |
| 600 gal | = 13798249841.471 dec |
| 700 gal | = 16097958148.383 dec |
| 800 gal | = 18397666455.295 dec |
| 900 gal | = 20697374762.207 dec |
| 1000 gal | = 22997083069.119 dec |
| 2000 gal | = 45994166138.237 dec |
| 4000 gal | = 91988332276.474 dec |
| 5000 gal | = 114985415345.59 dec |
| 7500 gal | = 172478123018.39 dec |
| 10000 gal | = 229970830691.19 dec |
| 25000 gal | = 574927076727.96 dec |
| 50000 gal | = 1149854153455.9 dec |
| 100000 gal | = 2299708306911.9 dec |
| 1000000 gal | = 22997083069119 dec |
| 1000000000 gal | = 2.2997083069119E+16 dec |