✦ EST. MMXXVI
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✦ HOW WE DO IT

Real astrology,
honestly under the hood.

No magic out of thin air. Behind every Calestea feature: real ephemerides, geocentric tropical coordinates, classical rules, and transparent math. Here is exactly how.

01
✦ THE FOUNDATION

Your natal chart

Geocentric
Tropical zodiac
Ephemerides
Ascendant · MC
Lunar nodes

Everything starts with your birth chart. From your date, time, and place we compute the positions of the luminaries and planets along the ecliptic — in the geocentric tropical system, the Western zodiac of 12 signs measured from 0° Aries.

We compute the Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, plus the Lunar Nodes (Rahu and Ketu), Chiron, and the Black Moon (Lilith). If your exact birth time is known, we add the angles: the Ascendant, Midheaven (MC), and houses.

Between the points we find aspects — conjunctions, sextiles, squares, trines, oppositions — with accepted orbs (up to 8° for the majors). Without a birth time we do not show houses or the Ascendant, and we say so plainly: better to stay silent than to invent.

02
✦ THE MOVING SKY

Transits

Transit-to-natal
Orb ±2°
Void-of-course Moon
Retrogrades
Lunar phases

Every day the sky moves. The transit engine computes the current geocentric positions of the planets locally, on an astronomical ephemeris core, and lays them over your natal chart.

We keep only tight aspects — a 2° orb for conjunction, square, trine, and opposition, and 1° for the sextile — so it never ends up that "everything aspects everything." We distinguish applying from separating aspects, retrograde planets, stations, the Moon’s phase and illumination, and the void-of-course Moon (with Lilly’s classical sign exceptions).

These same transits feed the daily brief, "Check for me," and the lucky-days math — one honest engine across all features.

03
✦ DAILY READS

Brief & "Check for me"

Transit-to-natal
Fastest aspects
Reality filter
No invention

The Cosmic brief is your transits for today in plain language: what is lit up and how to live it. We lead with the fastest active aspect (Moon, Sun, Mercury, Venus, Mars); slow planets are background, not "today."

"Check for me" works on yours and theirs alike: describe your own day or situation — or paste any horoscope from the web — and we compare it against your real transits, telling you what lands on you and what misses.

The text is written by AI — but strictly from the list of real aspects in your chart, with an explicit ban on inventing anything that isn’t in the data. We compute; it phrases.

04
✦ YES OR NO

Horary

Horary astrology
Regiomontanus
Significators
Perfection
Lilly · Frawley

Horary astrology answers a concrete question from a chart cast for the moment the question is asked, at the querent’s location. Houses use the Regiomontanus system — the traditional choice for horary.

We map the question to the right house (marriage — VII, work — X, money — II, and so on), assign the significators of the querent and the matter, read their condition, the Moon’s applying aspects, perfection, and check whether the Moon is void of course.

The verdict — yes / no / unclear — is phrased in the manner of William Lilly and John Frawley from the real chart of the moment. The full paid reading goes deeper: dignity of the significators, translation and collection of light, timing.

05
✦ WHEN EXACTLY

Best moment & lucky days

Electional astrology
Essential dignities
Benefics · malefics
Combustion · eclipses

Electional astrology finds the best time for a thing. For each candidate day we compute the sky and score the transits to your chart by a formula: aspect harmony × tightness × planet speed × relevance to the goal.

We account for the nature of the planets (Jupiter and Venus are benefics, Saturn and Mars malefics) and their essential dignities (domicile, exaltation, detriment, fall). We subtract points for a void-of-course Moon, combustion, the New and Full Moon, proximity to eclipses, and retrograde motion of a planet relevant to the goal.

"Lucky days" takes a ready-made theme (love, money, a talk, career, travel, a launch, luck); "Best moment" takes your free-form question. Each day gets a score out of 100 and a dashboard: energy, luck, creativity, smoothness.

✦ HONESTLY

The astronomy is rigorous. The interpretation is with you.

Positions of the luminaries, aspects, and orbs we compute for real: genuine ephemerides, geocentric tropical coordinates, classical rules. Here we are not approximate.

The interpretation — where the technique meets your life — is written by AI, relying only on the real numbers of your chart. We forbid it from inventing aspects, and without a birth time, from speaking about houses and the Ascendant.

Calestea is for self-reflection and inspiration — not medical, legal, or financial advice, and not a prediction of fate.

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Example chart · real ephemerides
Build your chart → @CalesteaBot