Word origin · etymology
Greek combining forms.
Topo- comes from topos, place. The name means centered on a particular observing place, rather than Earth's center.
How we know · epistemology
Observer convention
Adding a surface observer accounts for location-dependent parallax. Accuracy still depends on coordinates, elevation and correction choices; it does not imply that a related astrological interpretation is locally validated.
Connected concepts
Terms used in this explanation
Mentioned in 4 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.