Sign 4 of 12 · Tropical zodiac
Cancer
Cancer is a cardinal water sign, traditionally ruled by the Moon. Initiative through care and belonging. The emphasis is on creating or protecting a familiar base.
Find Cancer in my chart- Element
- Water
- Modality
- Cardinal
- Traditional ruler
- Moon
- Zodiac longitude
- 90° to <120°
Read Cancer through the planet
A sign describes a style of expression. The planet supplies the subject. A Sun reading concerns identity; a Moon reading concerns emotional needs and familiar responses.
Sun in Cancer
Sun in Cancer is associated with finding purpose in caring for people and creating a sense of belonging. Keeping friends connected after a move is one possible expression. Care also involves recognizing when someone wants room to act independently.
Read the full Sun in Cancer guideMoon in Cancer
A Cancer Moon is associated with seeking comfort through familiar people and places. Reconnecting with someone who knows your history can matter after an unsettling change. The same attachment can make it difficult to accept that a relationship or home has changed.
Read the full Moon in Cancer guideCancer rising
The Ascendant describes the zodiac degree rising at the eastern horizon. In a reading, it concerns personal presence and the approach to unfamiliar situations. A birth time and location are needed to calculate it.
With Cancer rising, the Moon is the traditional chart ruler. Its sign and house connect the rising-sign interpretation with another part of the chart.
Find my chart ruler and its placementA worked comparison
The same sign, different questions
A Cancer Sun concerns the role belonging plays in a chosen identity. A Cancer Moon concerns familiar ways of seeking or offering care. Someone can identify with protecting others while needing privacy when they are upset. The Sun and Moon need separate attention before their meanings are combined.
These are illustrative interpretations, not facts inferred about you.
Every planet in Cancer
Choose the placement listed in your birth chart. Each guide explains its meaning and how houses or aspects change the reading.
Find the rest of the context
A sign label is one part of a placement. Read it alongside the planet, house and aspects. These describe different chart relationships.
The degree range, with an example
A longitude of 105° is 15° Cancer. At exactly 120°, the next sign, Leo, begins.
Every tropical sign spans 30°. The signs are equal coordinate divisions; the astronomical constellations have different boundaries.
Read the calculation methodsPlacidus houses with Cancer rising
The Ascendant degree in Cancer starts the 1st Placidus house. Its end and the remaining cusps depend on the exact birth time and location.
Read the calculated house list rather than counting one sign per house. A sign can appear on consecutive cusps or sit inside a house without starting one.
Read Placidus boundaries and house topicsRelated signs and chart angles
Scorpio and Pisces share the water element. Capricorn is opposite Cancer in zodiac order.
Matching degrees in opposite signs are 180° apart. Exact degrees and the permitted orb decide whether two placements form an aspect.
Sign categories do not provide a relationship score. A two-person comparison needs the placements in both charts.
Understand aspects and orbs · Compare two chartsWhen a birth time or sign boundary is uncertain
Calendar date lists are approximate. Near a Sun-sign boundary, the year and birth time can change the answer. If an uncertain birth period includes a sign change, Astriel shows the alternatives.
Unknown birth time leaves the Ascendant and houses unavailable. The available planetary signs remain in the result.
Calculate my Sun, Moon and rising signSources and reading limits
Elements, modalities and rulers are astrological conventions. They do not establish a measured personality profile or predict an event.
The symbolic explanations follow Astriel's editorial astrology reference and the linked placement guides. Worked comparisons illustrate the reading method.
Classification references: elements, modalities and traditional and modern rulerships. Degree examples follow the tropical zodiac. House teaching uses calculated Placidus cusps.
Sky calculation: apparent geocentric ecliptic of date; tropical zodiac. Ephemeris: astronomy-engine 2.1.19. Computed 2026-11-03T13:29:58.935Z.