On 23 August 1981 you observe a back sight of the upper limb of the Sun as seen through the sextant’s scope. The sextant altitude (hs) is 116°42.8′. The height of eye is 56 feet and the index error is 2.0′ on the arc. What is the observed altitude (Ho)?
A) 63°42.0′ B) 63°38.0′ C) 63°19.4′ D) 62°49.6′ E)NULL