Answer:
A little pool with two layers of wall around it. One white and soft and the other dark and hard. Amidst a light brown grassy lawn with an outline of a green grass.
I'm a god. I'm a planet. I measure heat.
As soft as silk, as white as milk, as bitter as gall, a thick green wall, and a green coat covers me all.
Two in a whole and four in a pair. And six in a trio you see. And eight's a quartet but what you must get. Is the name that fits just one of me?
A beacon from home to guide your way. It can be a lifesaver on a stormy day. What is it?
I have two eyes in the front and a lot of eyes on my tail