On 29 June 1981 you observe a back sight of the lower limb of the Moon as seen through the sextant’s scope. The sextant altitude (hs) is 114°16.9′. The height of eye is 36 feet, and the index error is 2.0′ off the arc. The horizontal parallax is 60.5′. What is the observed altitude (Ho)?
On 29 June 1981 you observe a back sight of the lower limb of the Moon as seen through the sextant’s scope. The sextant altitude (hs) is 114°16.9′. The height of eye is 36 feet, and the index error is 2.0′ off the arc. The horizontal parallax is 60.5′. What is the observed altitude (Ho)?
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