Which vertices constitute the Celestial Triangle?

The vertices that constitute the Celestial Triangle are the celestial pole, a celestial body (such as a star or planet), and the observer's zenith. This triangular representation is fundamental in celestial navigation because it helps sailors determine their position on the Earth's surface based on observations of celestial objects.

The celestial pole serves as a fixed point in the sky, representing the projection of the Earth's poles onto the celestial sphere. The celestial body provides an observable reference point, essential for triangulating one's position. The observer's zenith, defined as the point directly above the observer, completes the triangle and allows navigators to calculate angles and distances, facilitating accurate navigation.

Understanding the significance of these vertices and their relationships is crucial for effective use of celestial navigation techniques.