| 1. | Proxima comes within AU of Alpha Centauri AB at periastron, and the apastron occurs at AU.
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| 2. | The orbital separation varies from 2 astronomical units at periastron to 17.5 astronomical units at apastron.
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| 3. | "' HD 171238 b "'is an extrasolar planet which orbits the apastron distances.
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| 4. | At periastron, the distance is 0.124 AU and at apastron, the distance is 2.44 AU.
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| 5. | At periastron, the distance is 1.70 AU and at apastron, the distance is 4.66 AU.
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| 6. | At periastron, the distance is 0.237 AU and at apastron, the distance is 1.66 AU.
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| 7. | WR 140 has been described as the brightest Wolf Rayet star in the AU at periastron to 23.9 AU at apastron.
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| 8. | The minimum separation at periastron is about 1.1 solar radii; the maximum separation at apastron is 4.8 solar radii.
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| 9. | The mean distance of the planet from the star is slightly more than apastron it is as distant as Mars is from the Sun.
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| 10. | In the " true orbit ", closest approach or apastron last occurred in May 1995 and the next will be in 2075.
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