Sextant - Index error calculation and application

This video focuses on the procedure for the calculation of the index error of the Sextant using the Sun and the Star. The explanation in this video is aided through animations for better understanding. Previous videos have discussed: Parts of the Sextant:    • What are the different parts of a sextant?...   Reading the sextant:    • How to read the sextant to obtain the alti...   Adjustable errors of the sextant:    • Adjustable errors of the sextant - Determi...   Non-adjustable errors of the sextant:    • Non-adjustable errors of the SEXTANT   Horizontal sextant angles:    • Using horizontal sextant angles to plot th...   Vertical sextant angles:    • Measuring vertical sextant angles   Celestial body sextant altitude:    • How do you use a sextant to measure celest...