Astrology · The sky at your birth

Natal Chart

A moment in the heavens.
A chart to explore in detail.

The recorded moment

Birth details

Date of birth

YYYY-MM-DD · No modern-era date cutoff. Year 0000 means 1 BCE; −0001 means 2 BCE. Use a plain minus sign for negative years.

Calendar of the recorded date

Select the calendar used by the record. Years begin on 1 January here; adjust records using a different year-start convention.

Local birth timeTime unknown

The time recorded at the birthplace.

Birthplace

Search for a city, then select it.

Coordinates and time zone

LatitudeLongitude

North and east are positive; south and west are negative. Enter coordinates here if your town is absent from the city list.

IANA time zoneUse a documented UTC offset

House system

Birth details are calculated in this browser and are not saved by this page.

Enter your birth details to reveal the planets and angles, twelve houses, and the relationships within your chart.

Natal chart

Select a planet, angle or house to explore its position.

The complete picture

Planets & angles

12 positions

D · Direct R · Retrograde S · Near station

Body / point	Zodiac position	M	House

Tropical zodiac · Geocentric positions · Select any row for details.

Twelve areas of life

The houses

Placidus

The cusp marks where a house begins. The topics below are traditional associations, with source context in the chart reference.

House	Cusp	Traditional topics	Planets here

Historical topics after Lilly–Zadkiel, Chapter IV, in the revised 1852 edition.

Patterns across the zodiac

Chart balance

10 bodies · Equal weight

Each of the ten bodies counts once (10%). Angles are excluded. These distributions describe placement, not a personality score.

Relationships between planets

Major aspects

Ordered by closeness to exact. Select a pair to inspect its separation and orb.

Conjunction and opposition: 8° orb · Square and trine: 6° · Sextile: 4°.

A second moment

Transits

Calculate a natal chart above, with a known birth time, to compare transits.

The date control uses UTC, not the birthplace’s local clock. Each step is the selected number of 24-hour days. Transit orbs are separate from the natal chart’s settings.

Inner ring · NatalOuter ring · Transit

Transit-to-natal aspects

Transit body

Moving planets in natal houses

Body	Transit position	Natal house	Motion

Chart reference

A planet is a body, a sign is a 30° interval of the zodiac, and a house is a division of the chart. Enable JavaScript to explore the reference, or read the complete texts below.

Astrology in the archive

Claudius Ptolemy · J. M. Ashmand

Tetrabiblos

English translation from the Greek paraphrase attributed to Proclus, 1822. Four books, with Ashmand’s preface, notes and appendices.

Read the text →William Lilly · revised by Zadkiel

An Introduction to Astrology

London, 1852. Zadkiel’s revised edition, with its preface, the life of Lilly, chapters and appendices.

Read the text →

Sources and licenses

Planetary calculations: Astronomy Engine 2.1.19, by Don Cross, under the MIT license.

Birthplace names, WGS84 coordinates and time-zone identifiers: GeoNames, under CC BY 4.0. The bundled city list is a transformed selection of its cities15000, country and administrative-area data, retrieved 7 September 2026. It covers major cities and some administrative centres; use manual coordinates for an absent place. Data notice.

Historical time-zone information: IANA Time Zone Database, as supplied by your browser.