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 Years (Sy) = 31558149.504 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 Years (table conversion) |
|---|---|
| 1 gal | = 229838571.46252 Sy |
| 2 gal | = 459677142.92504 Sy |
| 3 gal | = 689515714.38756 Sy |
| 4 gal | = 919354285.85008 Sy |
| 5 gal | = 1149192857.3126 Sy |
| 6 gal | = 1379031428.7751 Sy |
| 7 gal | = 1608870000.2376 Sy |
| 8 gal | = 1838708571.7002 Sy |
| 9 gal | = 2068547143.1627 Sy |
| 10 gal | = 2298385714.6252 Sy |
| 20 gal | = 4596771429.2504 Sy |
| 30 gal | = 6895157143.8756 Sy |
| 40 gal | = 9193542858.5008 Sy |
| 50 gal | = 11491928573.126 Sy |
| 60 gal | = 13790314287.751 Sy |
| 70 gal | = 16088700002.376 Sy |
| 80 gal | = 18387085717.002 Sy |
| 90 gal | = 20685471431.627 Sy |
| 100 gal | = 22983857146.252 Sy |
| 200 gal | = 45967714292.504 Sy |
| 300 gal | = 68951571438.756 Sy |
| 400 gal | = 91935428585.008 Sy |
| 500 gal | = 114919285731.26 Sy |
| 600 gal | = 137903142877.51 Sy |
| 700 gal | = 160887000023.76 Sy |
| 800 gal | = 183870857170.02 Sy |
| 900 gal | = 206854714316.27 Sy |
| 1000 gal | = 229838571462.52 Sy |
| 2000 gal | = 459677142925.04 Sy |
| 4000 gal | = 919354285850.08 Sy |
| 5000 gal | = 1149192857312.6 Sy |
| 7500 gal | = 1723789285968.9 Sy |
| 10000 gal | = 2298385714625.2 Sy |
| 25000 gal | = 5745964286563 Sy |
| 50000 gal | = 11491928573126 Sy |
| 100000 gal | = 22983857146252 Sy |
| 1000000 gal | = 2.2983857146252E+14 Sy |
| 1000000000 gal | = 2.2983857146252E+17 Sy |