| 11. | The latter dependence follows a reciprocity law, meaning that dislocations images become narrower inversely as the angular distance grows.
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| 12. | Longitude ( symbol ) measures the angular distance of an object eastward along the galactic equator from the galactic center.
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| 13. | He is also credited to have invented the Jacob's staff, an instrument to measure the angular distance between celestial objects.
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| 14. | The BC pair lies at an angular distance of 177 arc-seconds from Regulus A, making them visible in amateur telescopes.
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| 15. | The difference in the two micrometer readings so obtained is the apparent separation or angular distance between the two stars.
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| 16. | When both objects are in the same view, aligning them together allows the navigator to measure the angular distance between them.
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| 17. | This is then subtracted from 90?to obtain the angular distance from the position directly above to obtain the zenith distance.
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| 18. | This equation breaks down at the zenith where the angular distance between the observed pointing and the zenith, ? s is 0.
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| 19. | The Xbox 360 copy protection functions by requesting the DVD drive compute the angular distance between specific data sectors on the disc.
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| 20. | The position angle of the secondary with respect to the primary is measured, together with the angular distance between the two stars.
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