Sun sign
Your core identity and will. The "star sign" most people know is the Sun sign.
Natal Chart Calculator — Sun, Moon & Rising (Free)
Enter your birth date, time, and place to precisely compute your Sun, Moon, and Rising signs — the core of any astrology chart. Free, astronomy-based natal chart.
Natal Chart — Sun, Moon & Rising
Enter your birth date, time, and place to compute the three core points of astrology: Sun, Moon, and Rising sign.
Astrology is a symbolic language for self-reflection, not a tool that fixes your fate.
A natal chart is a map of the sky at your birth, rebuilt by astronomy
A natal (birth) chart maps where the Sun, Moon, and planets were among the zodiac signs at your exact birth moment, based on your date, time, and place. This calculator computes your Sun, Moon, Rising, and other placements directly with astronomical algorithms, so your chart is built from first principles rather than pulled from an external service.
Astronomical calculation and symbolic interpretation are different
Calculating where celestial bodies were at birth belongs to astronomy. Assigning personality, relationship, or life meaning to those placements belongs to the long cultural tradition of astrology. Some people use a chart as a framework for examining personal narratives rather than as a fixed script of fate. Keep the certainty of the calculation separate from the evidence for the interpretation.
Core placements calculated
Moon sign
Your inner emotional world, needs, and instinctive reactions.
Rising (Ascendant)
The sign rising on the eastern horizon at your birth time — your first impression and outward manner.
How to use it
Read your Big Three
Sun, Moon, and Rising together give a layered view of will, emotion, and expression.
Why birth time matters
The Ascendant changes quickly through the day. The more exact your birth time, the more accurate your Rising sign.
Pair it with saju
The natal chart is a Western birth tool; saju is its East Asian counterpart. Compare the same birthday in two languages.
Frequently asked questions
Is astrology scientific?
Computing the positions of the stars is astronomy, but assigning personality or fate to those positions is astrology — a symbolic system, not science. Use it for self-reflection.
Do I need my exact birth time and place?
Sun and Moon signs are mostly set by the date, but the Ascendant depends on your birth time and latitude, so an accurate time and place are needed for a correct Rising sign.
How do Sun, Moon, and Rising differ?
Read the Sun as your core self, the Moon as inner emotion, and the Rising as your first impression. When the three differ, that contrast is your layered self.
How accurate is this calculator?
It computes the ecliptic longitudes of the Sun and Moon and the Ascendant directly from astronomical formulas, self-validated against reference values like new-moon alignments and planetary positions. The astrological interpretation itself remains a symbolic reference.
Read more
Generated:
Sources
Models This Test References
Referenced scales and theories
- Western tropical astrology
- natal chart calculation from birth date/time/location (Sun/Moon/Rising signs)
Before you read
This test adapts popular type language for reflection. Do not use it to define a person or replace important decisions.
Source note updated: 2026-06-13 View methodology