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Astral Atlas
Wiki concept · Astronomy & coordinates

Aberration

A small apparent shift in direction caused by the observer’s motion and the finite speed of light.

In this entry

Word origin · etymology

Latin borrowing.

From Latin aberratio and aberrare, to wander away. The astronomical use names a displacement from an uncorrected direction.

Merriam-Webster: aberration ↗

How we know · epistemology

Physical model

Observer motion and finite light speed explain this directional correction. Its inclusion affects high-precision coordinate comparisons, not the object’s underlying identity or an independently established symbolic meaning.

Skyfield: astronomical positions ↗

Connected concepts

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. Skyfield: astronomical positions ↗
  2. Merriam-Webster: aberration ↗