Answer:
I will disappear every time you say my name.
When I get closer my tail grows longer but when I go away my tail leads the way.
I can be simple or I can be complex. I can be found in this riddle or in everyday life. I can be shapes or even colors.
Soft and cuddly I'll pull on your heart. But take my last name and I'll tear you apart.
I'm a god a planet and a measurer of heat. Who am I?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?