The Comet's Tale
Astronomer's Review  IV

Comet Orbits

1.  In the word perihelion, "peri" means close. What do you think the "ap" in aphelion means? 



2.  What is the period of a comet? 



3.  Do you know another name for the earth's orbital period?  (Hint:  think of the calendar.) 



4.  What is a long period comet? 



5.  How long can the period be for a long period comet?



6.  How are short period comets different from long period comets?