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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 Days (Sd) is equal to 86164.1 seconds, while 1 Galactic Years (gal) = 7.25328E+15 seconds.| 1 Sidereal Days | to common time units |
|---|---|
| 1 Sd | = 86164.1 seconds (s) |
| 1 Sd | = 1436.0683333333 minutes (min) |
| 1 Sd | = 23.934472222222 hours (hr) |
| 1 Sd | = 0.99726967592593 days (day) |
| 1 Sd | = 0.14246709656085 weeks (wk) |
| 1 Sd | = 0.0027322456874683 years (yr) |
| 1 Sd | = 0.032786948249619 months (mo) |
| 1 Sd | = 0.000273189917565 decades (dec) |
| 1 Sd | = 2.73189917565E-5 centuries (cent) |
| 1 Sd | = 2.73189917565E-6 millenniums (mill) |
| Sidereal Days | to Galactic Years (table conversion) |
|---|---|
| 1 Sd | = 1.1879329075949E-11 gal |
| 2 Sd | = 2.3758658151898E-11 gal |
| 3 Sd | = 3.5637987227847E-11 gal |
| 4 Sd | = 4.7517316303796E-11 gal |
| 5 Sd | = 5.9396645379745E-11 gal |
| 6 Sd | = 7.1275974455695E-11 gal |
| 7 Sd | = 8.3155303531644E-11 gal |
| 8 Sd | = 9.5034632607593E-11 gal |
| 9 Sd | = 1.0691396168354E-10 gal |
| 10 Sd | = 1.1879329075949E-10 gal |
| 20 Sd | = 2.3758658151898E-10 gal |
| 30 Sd | = 3.5637987227847E-10 gal |
| 40 Sd | = 4.7517316303796E-10 gal |
| 50 Sd | = 5.9396645379745E-10 gal |
| 60 Sd | = 7.1275974455695E-10 gal |
| 70 Sd | = 8.3155303531644E-10 gal |
| 80 Sd | = 9.5034632607593E-10 gal |
| 90 Sd | = 1.0691396168354E-9 gal |
| 100 Sd | = 1.1879329075949E-9 gal |
| 200 Sd | = 2.3758658151898E-9 gal |
| 300 Sd | = 3.5637987227847E-9 gal |
| 400 Sd | = 4.7517316303796E-9 gal |
| 500 Sd | = 5.9396645379745E-9 gal |
| 600 Sd | = 7.1275974455695E-9 gal |
| 700 Sd | = 8.3155303531644E-9 gal |
| 800 Sd | = 9.5034632607593E-9 gal |
| 900 Sd | = 1.0691396168354E-8 gal |
| 1000 Sd | = 1.1879329075949E-8 gal |
| 2000 Sd | = 2.3758658151898E-8 gal |
| 4000 Sd | = 4.7517316303796E-8 gal |
| 5000 Sd | = 5.9396645379745E-8 gal |
| 7500 Sd | = 8.9094968069618E-8 gal |
| 10000 Sd | = 1.1879329075949E-7 gal |
| 25000 Sd | = 2.9698322689873E-7 gal |
| 50000 Sd | = 5.9396645379745E-7 gal |
| 100000 Sd | = 1.1879329075949E-6 gal |
| 1000000 Sd | = 1.1879329075949E-5 gal |
| 1000000000 Sd | = 0.011879329075949 gal |