| 11. | However, an alternative orbital period of 23.8 hours is also possible.
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| 12. | C / 1979 Y1 has an orbital period of 300 years.
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| 13. | There is a suspected planetary companion with an orbital period of 122 days.
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| 14. | These orbit Tellene with an 80, 34 and 28 day Orbital period respectively.
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| 15. | The previously unconstrained orbital period and minimum mass were constrained in January 2014.
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| 16. | Because the orbital period was 106 minutes, the fragments would not decay quickly.
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| 17. | The orbital period is slowly changing due to mass exchange between the stars.
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| 18. | The ratios in the figure are of " orbital periods ".
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| 19. | The comet has an orbital period of over 20, 000 years.
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| 20. | These stars have orbital periods of 8 days and 9.2 years.
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