# Apparent Altitude

Calculating the * Apparent Altitude* will be the focus of this video.

*Index Correction*refers to any mechanical offset in the sextant that could not be corrected, and

*Dip Correction*comes from the height of the observer’s eye above the local horizon. These terms are added together with the

*Sextant Altitude*(the observed angle measurement using a sextant) to get our

*.*

**Apparent Altitude**

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