Harmonious Aspect

Astrology divides aspects into harmonious and disharmonious ones. The major harmonious aspects are the trine and sextile with the minor ones being the quintile, bi-quintile and the semi-sextile. The harmonious aspects used to be considered "good" and the disharmonious ones "bad", although this is no longer the case with the term "challenging" considered a more accurate (and less biased) description of the latter group.