Key Takeaways:
- Astronomers utilize angular measurement techniques for determining the spatial separation between celestial objects.
- The methodology involves measuring the angular distance or size.
- Angular measurements are employed to quantify the apparent separation of objects in the sky.
- The described technique pertains to the determination of angular size and separation of astronomical entities.

William Zuback
Astronomers use them to measure the separation between two objects, or the angular size of an object.
