A shift in the pointing position of a telescope with respect to a
reference position.
Another term for the → bias in
→ CCD detectors.
Surveying: A short distance measured perpendicularly from a main survey line.
Etymology (EN): → off- + → set.
Etymology (PE): Ap-, → off-;
- neh present stem of nehâdan
“to place, put; to set” Mid.Pers. nihâtan;
Av. ni- “down; below; into,” → ni-, - dā- “to put; to establish; to give,”
dadāiti “he gives;” cf. Skt. dadāti “he gives;”
Gk. didomi “I give;” L. do “I give;” PIE base *do- “to give.”
