DISCO | D | pincushion/barrel distortion coefficient |
---|---|---|
X,Y | D | tangent-plane ![]() |
X,Y | D | distorted ![]() |
---|
Geometry | DISCO |
astrograph | 0.0 |
Schmidt | -0.3333 |
AAT PF doublet | +147.069 |
AAT PF triplet | +178.585 |
AAT f/8 | +21.20 |
JKT f/8 | +14.6 |
SLALIB --- Positional Astronomy Library