Solar line up?
Question:
Answer:
Having two planets form a straight line with the Sun is fairly common, and is called a conjunction. Having three planets in a line with the Sun happens about once every 800 years according to calculations first done by Kepler.
Line ups of more planets get rapidly more rare. Jean Meeus, a European astronomer, has calculated a seven planet line up occurs only once in many millions of years.
Not during our time son...
If I'm not mistaken, it was not too long ago. When we sent out the probe that took all (and the only) pictures we have of the outer planets.Jupiter, Saturn, Uranus and Neptune...they were all lined up that is how we got a flyby of all the planets at the same time. I believe it was Voyager 2 that did this. We would have never got pictures of all of them if they weren't lined up. This may have only been the other planets though...find out how often it happens and that will give you an estimate
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