# Bayer system

> English word · Proper noun

## Definitions
1. A method of stellar classification in which stars are assigned Greek letters (α, β, γ, etc.) in decreasing order of brightness.

## Etymology
After Johann Bayer, German astronomer.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/bayer-system