Package org.jastronomy.jsofa
Class JSOFA.TangentPlaneCoordinate
- java.lang.Object
-
- org.jastronomy.jsofa.JSOFA.TangentPlaneCoordinate
-
- Enclosing class:
- JSOFA
public static class JSOFA.TangentPlaneCoordinate extends java.lang.Object
Tangent Plane Position consisting of (xi, eta) pairs in radians.Notes:
- The tangent plane projection is also called the "gnomonic projection" and the "central projection".
- The eta axis points due north in the adopted coordinate system. If the spherical coordinates are observed (RA,Dec), the tangent plane coordinates (xi,eta) are conventionally called the "standard coordinates". For right-handed spherical coordinates, (xi,eta) are also right-handed. The units of (xi,eta) are, effectively, radians at the tangent point.
- Since:
- JSOFA release 20180130
- Author:
- Paul Harrison (paul.harrison@manchester.ac.uk)
-
-
Constructor Summary
Constructors Constructor Description TangentPlaneCoordinate(double xi, double eta, int j)
-