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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 Sidereal Days (Sd) = 86164.1 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 Sidereal Days (table conversion) |
|---|---|
| 1 gal | = 84179838238.895 Sd |
| 2 gal | = 168359676477.79 Sd |
| 3 gal | = 252539514716.69 Sd |
| 4 gal | = 336719352955.58 Sd |
| 5 gal | = 420899191194.48 Sd |
| 6 gal | = 505079029433.37 Sd |
| 7 gal | = 589258867672.27 Sd |
| 8 gal | = 673438705911.16 Sd |
| 9 gal | = 757618544150.06 Sd |
| 10 gal | = 841798382388.95 Sd |
| 20 gal | = 1683596764777.9 Sd |
| 30 gal | = 2525395147166.9 Sd |
| 40 gal | = 3367193529555.8 Sd |
| 50 gal | = 4208991911944.8 Sd |
| 60 gal | = 5050790294333.7 Sd |
| 70 gal | = 5892588676722.7 Sd |
| 80 gal | = 6734387059111.6 Sd |
| 90 gal | = 7576185441500.6 Sd |
| 100 gal | = 8417983823889.5 Sd |
| 200 gal | = 16835967647779 Sd |
| 300 gal | = 25253951471669 Sd |
| 400 gal | = 33671935295558 Sd |
| 500 gal | = 42089919119448 Sd |
| 600 gal | = 50507902943337 Sd |
| 700 gal | = 58925886767227 Sd |
| 800 gal | = 67343870591116 Sd |
| 900 gal | = 75761854415006 Sd |
| 1000 gal | = 84179838238895 Sd |
| 2000 gal | = 1.6835967647779E+14 Sd |
| 4000 gal | = 3.3671935295558E+14 Sd |
| 5000 gal | = 4.2089919119448E+14 Sd |
| 7500 gal | = 6.3134878679171E+14 Sd |
| 10000 gal | = 8.4179838238895E+14 Sd |
| 25000 gal | = 2.1044959559724E+15 Sd |
| 50000 gal | = 4.2089919119448E+15 Sd |
| 100000 gal | = 8.4179838238895E+15 Sd |
| 1000000 gal | = 8.4179838238895E+16 Sd |
| 1000000000 gal | = 8.4179838238895E+19 Sd |