It is not a homework, it is my question, and I hope it is explained.

Question

Sometimes at night I look ATTENTIONALLY at the starry sky , notice and see that there is an object which is as small as a star is moving. It is very very far and has the light as the light of a star, and I FEEL that the DISTANCE from my eyes to it is equal the distance from my eyes to stars. This object IS MOVING AND ALWAYS AVOID TO HIT STARS. One time, I thought it was a satellite, but a satellite is not BIG enough to BE seen at such a distance. There were also many times I saw two objects and one time I saw three objects, they are flying in parallel. What are these objects?