Skip to content
Astral Atlas
Wiki concept · Zodiac & chart foundations

Fixed signs

Also called fixed modality

Taurus, Leo, Scorpio and Aquarius; one of astrology’s three four-sign groupings.

In this entry

Word origin · etymology

Descriptive English classification.

Fixed means established or held in place. The classification uses this steadiness metaphor for Taurus, Leo, Scorpio, and Aquarius.

Merriam-Webster: fixed ↗

How we know · epistemology

Traditional classification

Classical texts document this four-sign grouping. The label describes a place within an astrological scheme; it does not show that people assigned these signs resist change.

Ptolemy: Tetrabiblos I.4–24, Robbins translation ↗

Connected concepts

Terms used in this explanation

These links connect subjects and terminology. They do not establish a shared historical origin.

Sources & provenance

Use the citations beside each section to distinguish a calculation convention, a historical teaching and an editorial example.

Find these sources across the wiki →

  1. Ptolemy: Tetrabiblos I.4–24, Robbins translation ↗
  2. Merriam-Webster: fixed ↗