3.  In astrology, an orb is the amount away from a perfect angular relationship the astrologer allows for the points to still qualify as having that angular relationship. Thus, although an Opposition is 180°, many astrologers will define planets that have a relationship of 182° as being in Opposition. Generally, aspects between major bodies, such as between two planets, or with major aspects such as oppositions, are allowed larger Orbs than those of minor aspects such as sextiles. The larger the Orb (i.e., the further away from an exact aspect), the less the impact of that aspect.