What We Calculate

A reading is only as deep as the data underneath it. Most apps keep your sun sign and throw the rest away. AstroNoir computes the whole chart — and keeps recomputing the moving sky against it. Here's what's actually under the hood.

Your natal chart (the fixed sky)

The permanent snapshot of your birth moment:

• The luminaries & planets — Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto
• 140+ asteroids & sensitive points — Chiron, Lilith, the Nodes, Eros, Psyche, Vesta, Juno, Ceres and many more most apps simply skip
• The houses — twelve life areas anchored to your exact ascendant and midheaven
• Aspects — the geometric relationships between bodies, with proper orbs
• Dignity, reception & sect — how strong, supported, and day/night-flavored each placement is

The moving sky (timing)

Your chart never changes, but the sky keeps moving against it — that's where timing comes from:

• Transits — where the planets are right now relative to your chart
• Lunar phases — the Moon's cycle, personalized to your natal Moon
• Solar & lunar returns — the chart for each time the Sun or Moon comes back to its birth position
• Progressions — the symbolic slow-motion evolution of your chart over your life
• Profections — the traditional year-by-year technique that activates a different house each year
• Eclipses — when and where eclipses land on your chart

The scale behind it

None of this is guessed at on the fly. AstroNoir works from a precomputed 200-year sky — every planetary ingress, retrograde, eclipse, and lunar phase from 1926 to 2126 is already mapped — alongside a global atlas of cities for location work. When you open a reading, the heavy astronomy is already done.

Specialty layers

Some modules compute their own dedicated layers on top of the core chart — Eastern pillars and elements, feng-shui directional fields, planetary lines across the globe for location work, and more. Each is built from the same real-astronomy foundation.

Why all of it

Every one of these is a different lens on the same chart. Transits tell you now; returns and progressions tell you this year; profections tell you which area of life is lit up; the asteroids add texture the big planets miss. Stacking them is what lets a daily reading feel specific instead of generic, and what lets the AI astrologer answer real questions about your chart.

Next: meet the bodies behind it all in The Moon, the Planets & 140+ Asteroids, see how it becomes a reading in How It Works, or how precise it is in Accuracy & Precision.