Word origin · etymology
Greek technical borrowing.
Plural of antiscion, from anti-, opposite, and skia, shadow. The name describes the pairing of opposite or corresponding shadows.
How we know · epistemology
Geometric reflection with traditional use
Reflection uses the tropical solstitial axis. A sidereal display must convert that same axis correctly; interpreting mirrored points as connected affairs is a historical rule, not a physical interaction.
Connected concepts
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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.