Word origin · etymology
Greek through Latin and French.
Greek planēs means wanderer. The name records the bodies' changing positions against the background stars.
How we know · epistemology
Astronomical and traditional classifications
Astronomy classifies physical bodies using stated criteria, while astrology often uses planet as a broader working category. A list should identify which meaning it uses; a calculated node does not become a physical planet through inclusion in that list.
Connected concepts
Mentioned in 46 other entries
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.