Is it possible all the planets in our solar system will form a stright line, if yes duration between such form
Question:
Answer:
No.
The orbits are inclined slightly and I do not believe there is a place where they would all be *exacly* in a line.
But they get close together in the sky. The visible planets are within a couple of degrees every twenty or thirty years. (Holding your fist out will block about 10 degrees.) Such an alignment in the sky can last for a few days.
i like the other answer
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