What's the difference between sun sign and ascendant?

The sun sign is the Sun's position at birth (date only); the ascendant is the sign rising on the eastern horizon at that moment, and depends on date, time and place. The ascendant needs your birth time.

What do I need to calculate a natal chart?

Your birth date, time and place. Without the time we still compute Sun, Moon and planets, but not the Ascendant and houses (which depend on the exact time).

Do Aurapure's tools make predictions?

No. The astronomical calculations are accurate and verified; the readings point to themes and tendencies, not a fixed fate. No promises, no fortune-telling.

Which ephemeris does Aurapure use?

Moshier ephemeris via circular-natal-horoscope-js, with Luxon + IANA time conversion and independent tests vs JPL Horizons. Birth places, coordinates and timezones from GeoNames (CC BY 4.0).

Astrology

Astrology tools with Moshier ephemeris: natal chart, ascendant, Moon sign, synastry, transits, horoscope, and solar return. Verified calculations.

Quick answer

Aurapure's astrology hub gathers ten free tools computed with Moshier ephemeris and historical IANA timezones: natal chart, ascendant, Moon sign, synastry, transits, daily horoscope, solar return, lunar calendar, retrograde planets and Chinese zodiac. It also includes hundreds of deep-dive pages — planet in sign, planet in house, rising + sun — with original interpretive notes by the Aurapure team. Every calculation is verified; the interpretations point to themes, not predictions.

Programmatic content hub for SEO/GEO — original interpretive notes by the Aurapure team.

Hand-coloured plate from 1660: the Earth at the centre, ringed by the band of the zodiac with its twelve signs, astronomers and angels at the edges — The zodiac in Cellarius's atlas
Andreas Cellarius, Harmonia Macrocosmica (Amsterdam, 1660), plate II: the band of the zodiac around the Earth in the Ptolemaic system.
Public domain, Wikimedia Commons

Frequently asked questions

What's the difference between sun sign and ascendant?: The sun sign is the Sun's position at birth (date only); the ascendant is the sign rising on the eastern horizon at that moment, and depends on date, time and place. The ascendant needs your birth time.
What do I need to calculate a natal chart?: Your birth date, time and place. Without the time we still compute Sun, Moon and planets, but not the Ascendant and houses (which depend on the exact time).
Do Aurapure's tools make predictions?: No. The astronomical calculations are accurate and verified; the readings point to themes and tendencies, not a fixed fate. No promises, no fortune-telling.
Which ephemeris does Aurapure use?: Moshier ephemeris via circular-natal-horoscope-js, with Luxon + IANA time conversion and independent tests vs JPL Horizons. Birth places, coordinates and timezones from GeoNames (CC BY 4.0).