Aspects The dynamic interactions between the various energies of life are represented on an individual level by the "aspects" in a natal chart—that is, the angles between planets and between the Ascendant or Midheaven and the planets. Aspects have been spoken of as ('lines of force'' between the various energy centers (planets) in the energy field mapped by the chart. In the birth chart, which reveals this energy field with remarkable precision, the aspects are measured within the 360° circle. We will concentrate on the most commonly used aspects—the ones occurring every 30° all of which we consider "major aspects" that are reliable and illuminating. Aspects can be categorized in two groups: Dynamic or Challenging Aspects This refers to the square (90°), opposition (180°), quincunx (150 °) and sometimes, depending upon the harmony of the planets and signs involved, the conjunction (0°) and the semi-sextile (30°). Harmonious or Flowing Asp