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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.| 1 Sidereal Years | to common time units |
|---|---|
| 1 Sy | = 31558149.504 seconds (s) |
| 1 Sy | = 525969.1584 minutes (min) |
| 1 Sy | = 8766.15264 hours (hr) |
| 1 Sy | = 365.25636 days (day) |
| 1 Sy | = 52.17948 weeks (wk) |
| 1 Sy | = 1.0007023561644 years (yr) |
| 1 Sy | = 12.008428273973 months (mo) |
| 1 Sy | = 0.10005754440076 decades (dec) |
| 1 Sy | = 0.010005754440076 centuries (cent) |
| 1 Sy | = 0.0010005754440076 millenniums (mill) |
| Sidereal Years | to Galactic Years (table conversion) |
|---|---|
| 1 Sy | = 4.3508798094104E-9 gal |
| 2 Sy | = 8.7017596188207E-9 gal |
| 3 Sy | = 1.3052639428231E-8 gal |
| 4 Sy | = 1.7403519237641E-8 gal |
| 5 Sy | = 2.1754399047052E-8 gal |
| 6 Sy | = 2.6105278856462E-8 gal |
| 7 Sy | = 3.0456158665873E-8 gal |
| 8 Sy | = 3.4807038475283E-8 gal |
| 9 Sy | = 3.9157918284693E-8 gal |
| 10 Sy | = 4.3508798094104E-8 gal |
| 20 Sy | = 8.7017596188207E-8 gal |
| 30 Sy | = 1.3052639428231E-7 gal |
| 40 Sy | = 1.7403519237641E-7 gal |
| 50 Sy | = 2.1754399047052E-7 gal |
| 60 Sy | = 2.6105278856462E-7 gal |
| 70 Sy | = 3.0456158665873E-7 gal |
| 80 Sy | = 3.4807038475283E-7 gal |
| 90 Sy | = 3.9157918284693E-7 gal |
| 100 Sy | = 4.3508798094104E-7 gal |
| 200 Sy | = 8.7017596188207E-7 gal |
| 300 Sy | = 1.3052639428231E-6 gal |
| 400 Sy | = 1.7403519237641E-6 gal |
| 500 Sy | = 2.1754399047052E-6 gal |
| 600 Sy | = 2.6105278856462E-6 gal |
| 700 Sy | = 3.0456158665873E-6 gal |
| 800 Sy | = 3.4807038475283E-6 gal |
| 900 Sy | = 3.9157918284693E-6 gal |
| 1000 Sy | = 4.3508798094104E-6 gal |
| 2000 Sy | = 8.7017596188207E-6 gal |
| 4000 Sy | = 1.7403519237641E-5 gal |
| 5000 Sy | = 2.1754399047052E-5 gal |
| 7500 Sy | = 3.2631598570578E-5 gal |
| 10000 Sy | = 4.3508798094104E-5 gal |
| 25000 Sy | = 0.00010877199523526 gal |
| 50000 Sy | = 0.00021754399047052 gal |
| 100000 Sy | = 0.00043508798094104 gal |
| 1000000 Sy | = 0.0043508798094104 gal |
| 1000000000 Sy | = 4.3508798094104 gal |