What does this calculator do?

The astrology Big Three consists of the Sun sign, Moon sign and Rising sign. This calculator returns their exact signs and degrees from one set of birth details.

This page separates astronomical or arithmetic calculation from interpretation. It reports only values supported by the supplied data and the selected calculation method. Missing information is shown as unavailable rather than replaced with a guessed value.

Results included

• Sun sign and degree
• Moon sign and degree
• Rising sign and degree
• A clear unknown-time warning when needed

How to read the technical result

Check the sign or number first, then review exact degrees, houses, aspects, or reduction steps where they apply. A complete result should identify the input data, calculation system and any limitations. These details make the result reproducible and easier to compare with other professional tools.

Accuracy and data limitations

Without birth time, the Rising sign cannot be calculated and the Moon sign may be uncertain on a sign-change day. Names, dates, local times and locations should be entered carefully. A technically correct calculator cannot recover information that was not supplied, and Moodfex does not manufacture missing birth data.