... Bad Astronomy . Misconceptions . ... First, let's see if there can be any effect from the planets and stars as astrologers claim. ... Either way, the planets' combined force is miniscule compared to the Sun's. If EM is the force behind astrology, the planets could be safely ignored. ... After all, if a force cannot be measured, it cannot have an effect on us, and if astrologers say such a force exists, then all their claims must be based on that force, and should be consistent with each other. ...