You observe the planet Saturn at a sextant altitude (hs) of 63°05.1' on 25 May. The index error is 4.5' off the arc. The height of eye is 62 feet. What is the observed altitude (Ho)?

Question

You observe the planet Saturn at a sextant altitude (hs) of 63&deg;05.1' on 25 May. The index error is 4.5' off the arc. The height of eye is 62 feet. What is the observed altitude (Ho)?

Accepted Answer

Option B: 63&deg;01.5'. Per Bowditch altitude correction procedures, apply index error off the arc (add if off, subtract if on) and subtract dip derived from height of eye to convert sextant altitude (hs) into apparent and subsequently observed altitude (Ho).

You observe the planet Saturn at a sextant altitude (hs) of 63&deg;05.1' on 25 May. The index error is 4.5' off the arc. The height of eye is 62 feet. What is the observed altitude (Ho)?

You observe the planet Saturn at a sextant altitude (hs) of 63°05.1' on 25 May. The index error is 4.5' off the arc. The height of eye is 62 feet. What is the observed altitude (Ho)?