Semisquare
45°·tense·minor·default orb ±2°
Classical source
Half-square (45°), introduced as a minor aspect in Renaissance European astrology. Classified as mildly inharmonious.
Modern Western reading
Modern reading: irritating friction. A weaker echo of the square — small persistent challenges between the two principles.
Semisquare between two planets
Cited reference for this aspect between each pair of planets. Inner-planet pairs only list aspects their orbits can actually form.
- ☉ Sun∠☽ Moon
- ☉ Sun∠♀ Venus
- ☉ Sun∠♂ Mars
- ☉ Sun∠♃ Jupiter
- ☉ Sun∠♄ Saturn
- ☉ Sun∠♅ Uranus
- ☉ Sun∠♆ Neptune
- ☉ Sun∠♇ Pluto
- ☽ Moon∠☿ Mercury
- ☽ Moon∠♀ Venus
- ☽ Moon∠♂ Mars
- ☽ Moon∠♃ Jupiter
- ☽ Moon∠♄ Saturn
- ☽ Moon∠♅ Uranus
- ☽ Moon∠♆ Neptune
- ☽ Moon∠♇ Pluto
- ☿ Mercury∠♀ Venus
- ☿ Mercury∠♂ Mars
- ☿ Mercury∠♃ Jupiter
- ☿ Mercury∠♄ Saturn
- ☿ Mercury∠♅ Uranus
- ☿ Mercury∠♆ Neptune
- ☿ Mercury∠♇ Pluto
- ♀ Venus∠♂ Mars
- ♀ Venus∠♃ Jupiter
- ♀ Venus∠♄ Saturn
- ♀ Venus∠♅ Uranus
- ♀ Venus∠♆ Neptune
- ♀ Venus∠♇ Pluto
- ♂ Mars∠♃ Jupiter
- ♂ Mars∠♄ Saturn
- ♂ Mars∠♅ Uranus
- ♂ Mars∠♆ Neptune
- ♂ Mars∠♇ Pluto
- ♃ Jupiter∠♄ Saturn
- ♃ Jupiter∠♅ Uranus
- ♃ Jupiter∠♆ Neptune
- ♃ Jupiter∠♇ Pluto
- ♄ Saturn∠♅ Uranus
- ♄ Saturn∠♆ Neptune
- ♄ Saturn∠♇ Pluto
- ♅ Uranus∠♆ Neptune
- ♅ Uranus∠♇ Pluto
- ♆ Neptune∠♇ Pluto
Other aspects
Reference, not advice
This is cultural and astronomical reference, not personal prediction or advice.
Aspect classifications follow classical Western convention. Different traditions assign slightly different orb budgets — the values shown are conservative defaults used throughout this site.
Sources
Last reviewed .