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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 Hipparchic Cycles (HC) is equal to 9593424000 seconds, while 1 Galactic Years (gal) = 7.25328E+15 seconds.| 4653302079 Hipparchic Cycles | to common time units |
|---|---|
| 4653302079 HC | = 4.4641099843928E+19 seconds (s) |
| 4653302079 HC | = 7.4401833073214E+17 minutes (min) |
| 4653302079 HC | = 1.2400305512202E+16 hours (hr) |
| 4653302079 HC | = 5.1667939634176E+14 days (day) |
| 4653302079 HC | = 73811342334538 weeks (wk) |
| 4653302079 HC | = 1415559989977.4 years (yr) |
| 4653302079 HC | = 16986719879729 months (mo) |
| 4653302079 HC | = 141538046429.7 decades (dec) |
| 4653302079 HC | = 14153804642.97 centuries (cent) |
| 4653302079 HC | = 1415380464.297 millenniums (mill) |