Planets are three signs apart. A tense, "hard" aspect creating a state of friction or a "clash" between two different needs. While stressful, squares are the primary drivers of growth and action. They force the individual to resolve internal contradictions.
The astronomy in these guides is computed, not copied: sign boundaries, aspect angles and planetary positions are calculated on StarBind's own servers from the same JPL planetary data NASA uses, accurate to fractions of an arcsecond.