Glossary
House systems: meaning in astrology
A house system is the method used to divide the chart into twelve houses. Whole sign houses make each sign one house, starting with the rising sign; they are standard in Vedic astrology and in Hellenistic revival work. Placidus, the most common modern Western system, divides by time and produces houses of uneven size.
Equal, Koch and Porphyry are other options. Systems can disagree about a planet's house, so check which one a reading uses.
Where does "House systems" come up on this site?
180 guides use the term. The ones that use it most:
- North Node in the 7th house: two-lens reading
- Chiron in the 10th house: two-lens reading
- Chiron in the 11th house: two-lens reading
- Chiron in the 12th house: two-lens reading
- Chiron in the 1st house: two-lens reading
- Chiron in the 2nd house: two-lens reading
- Chiron in the 3rd house: two-lens reading
- Chiron in the 4th house: two-lens reading
How we calculate
Is astrology a guarantee of what will happen?
No. These calculations locate celestial bodies; astrology is a reflection and timing tradition, not evidence of guaranteed health, financial or relationship outcomes.
How are these results calculated?
Positions come from Astronomy Engine, an open-source astronomy library, and are checked against Swiss Ephemeris in our methodology tests. Western readings use the tropical zodiac; Vedic readings subtract the Lahiri ayanamsa. Terms are defined in the glossary.
Next: compare your birth chart, see today's sky, or make a private vision board.