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11. Our solar system
| 11.13 |
Our nearest neighbour(s)
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| Our nearest neighbour star system is Alpha Centauri (around 4.3 light years) away. | ||
| The Alpha Centauri system is a triple Sun system. The two brightest components Alpha Centauri A and Alpha Centauri B form a binary. They orbit each other in 80 years with a mean separation of 23 astronomical units (1 astronomical unit = 1AU = distance between the Sun and the Earth). | ||
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