A minor astrological aspect of 135° often indicating internal tension and the need for adjustment.
Definition
The sesquiquadrate is a minor aspect in astrology formed when two points in a chart are separated by 135°. This aspect is derived from dividing the circle into 8 parts (3/8 of 360°). Sesquiquadrates are considered to bring friction and challenge, often manifesting as subtle, internalized conflict rather than overt external obstacles. Unlike the square (90°), the sesquiquadrate operates on a less obvious level, pushing the individual toward growth through self-awareness and adaptation. Symbolically, it represents a blend of tension and learning, demanding effort to overcome ingrained patterns or unconscious habits. It is often associated with frustration that can, when addressed, lead to constructive change. In practice, the sesquiquadrate may not dominate a chart but can add nuance to the interpretation, especially when it involves personal planets or luminaries. Its influence may feel like a persistent, background hum of discontent, urging subtle but necessary realignments in perspective or behavior.
In a chart
In a natal chart, the sesquiquadrate is a 135° angle between two planets or points. Look for placements that are 3 signs and 15° apart, plus or minus a small orb (commonly 1–2°). It often involves planets in incompatible elements, creating friction. Avoid overemphasizing this aspect unless it ties to personal planets or angles.