Question About Our Universe?

Well, all the objects in the solar system are constantly influencing all the others with their gravity; that's how gravity works. There's nothing special about having them all lined up a line. It would not cause a noticeable "tidal effect". It would not cause any noticeable effect on Earth if this happened.

You have to remember that the strength of the gravitational force is inversely proportional to the square of the distance between two objects. That means the gravitational force at a distance of 1000 miles is one million times weaker than the force between the same two objects one mile apart. You also need to remember that over 99% of the mass in the solar system is in the Sun, and therefore its gravitational effects are vastly stronger than that of all the other planets combined.

Another thing to keep in mind is that it is not possible for all the planets in the solar system to line up in a straight line, because they don't all orbit in the same plane. In a two-dimensional representation of the solar system it may look possible, but in the real world it is not.

The position of every object has some gravitational effect on the position and orbit of every other object in orbit around our solar system. The effect is so incredibly negligible, that unless you are plotting an ephemeris for a planet several thousands of years in advance, you won't really notice (smaller objects, like asteroids and comets, *can* have notable pertubations on smaller timescales).

The planets would not cause a measurable tidal affect on the Sun, regardless of their configuration in their current orbits.

Earth? Nobody would notice a thing.

Planetary alignments are the 'fad' among doomsday fiction writers, but the reality is, you can never have all 8 planets lined up, and the effects are entirely negligible.

The planets do not have to line up The barycenter of the Solar System wobbles in real time because of the gravitational influences of the Sun and planets on each other. Do a Google search on Gravity simulator. It's freeware. Download the ssbarycenter simulation and play with for awhile, EVEN PLUTO 's gravity has a noticeable effect. You can eliminate planet's gravitational influence in the simulation. Running and playing that simulation taught me to question my assumptions.

http://www.orbitsimulator.com/gravity/articles/wha...

http://www.orbitsimulator.com/gravity/articles/dow...

READ THE CONTRACT BEFORE you click the button that you agree

http://www.orbitsimulator.com/gravity/articles/ssb...