Principles of Celestial Navigation

Navigation Menu

The Intercept Method » Intercept Method Overview » Exercise

Before we move on, try the exercise below and match each definition to its proper term.

Match each term below to its appropriate definition.

1. Point at which a Line of Position intercepts the azimuth line
Intercept
2. An approximate position close to where we think we are
Assumed position
3. Line representing all of our possible locations as determined from a celestial observation
Line of position
4. Sextant measurement plus some corrections
Observed altitude
5. Direction to the geographic position of the celestial object if we were exactly at the Assumed Position
Azimuth
6. Altitude the celestial object would have if viewed exactly from the Assumed Position
Computed altitude

If you struggled with any of these definitions, you might wish to review the previous pages. You'll learn more about how these values are used in celestial navigation as you continue through the module.