code: public final Equatorial eclipticToEquatorial(double eclipLong, double eclipLat)
      {
          // See page 42 of "Practial Astronomy with your Calculator",
          // by Peter Duffet-Smith, for details on the algorithm.
  
          double obliq = eclipticObliquity();
          double sinE = Math.sin(obliq);
          double cosE = Math.cos(obliq);
  
          double sinL = Math.sin(eclipLong);
          double cosL = Math.cos(eclipLong);
  
          double sinB = Math.sin(eclipLat);
          double cosB = Math.cos(eclipLat);
          double tanB = Math.tan(eclipLat);
  
          return new Equatorial(Math.atan2(sinL*cosE - tanB*sinE, cosL),
                                 Math.asin(sinB*cosE + cosB*sinE*sinL) );
      }
docs: Convert from ecliptic to equatorial coordinates.
  
  @param eclipLong     The ecliptic longitude
  @param eclipLat      The ecliptic latitude
  
  @return              The corresponding point in equatorial coordinates.
  @hide draft / provisional / internal are hidden on Android