How are long-period comets linked to the Oort Cloud, in terms of their observation?

Answer

Observing their trajectories provides indirect data to map the source cloud's expected composition

The primary evidence for the Oort Cloud comes from observing long-period comets. Their subsequent paths and chemical makeup allow astronomers to infer the location and composition of their distant source region.

How are long-period comets linked to the Oort Cloud, in terms of their observation?

#Videos

The Oort Cloud - YouTube

astronomysolar systemOort CloudCometsice