Library

What each planet means in each sign, how a birth chart is read, and what the sky is doing this year. Every figure on these pages is computed from the planets' real positions.

Signs and planets

Guides

All guides

Free tools

They run in your browser and need no e-mail address.

  • Big three calculator: Sun, Moon and rising sign

    Find your Sun, Moon and rising sign free in one chart. Learn what each of the big three describes, how they combine, and which birth details each needs.

  • Moon sign calculator

    Find your Moon sign free from your birth date. See when your birth time decides it, what the result describes, and how to read two candidate signs.

  • Rising sign calculator

    Find your rising sign (Ascendant) free from your birth date, time and place, and learn why the exact time matters and what to do if it is uncertain.

Sky calendar

In numbers