Question

The icy rocky tiny planet- like objects aka planetesimals , that originate from within the Oort cloud and later exit and start flying to the inner parts of our solar system are usually

Answer 1

Answer: are usually called Long- period comets.

Step-by-step explanation: Long Period comets have periods ranging from 200 years to thousands of years. They are icy rocky planetesimals which originate from th Oort cloud located beyond Pluto and the extreme edges of the Kuiper Belt and fly towards the inner parts of our solar systems.C/2012 S1 (ISON) and C/2013 A1 Siding Spring are two most recent Long period comets originating from the Oort cloud as reported by NASA.