public static CAASelenographicMoonDetails CalculateSelenographicPositionOfSun(double JD)
{
double R = CAAEarth.RadiusVector(JD) * 149597970;
double Delta = CAAMoon.RadiusVector(JD);
double lambda0 = CAASun.ApparentEclipticLongitude(JD);
double lambda = CAAMoon.EclipticLongitude(JD);
double beta = CAAMoon.EclipticLatitude(JD);
double lambdah = CAACoordinateTransformation.MapTo0To360Range(lambda0 + 180 + Delta / R * 57.296 * Math.Cos(CAACoordinateTransformation.DegreesToRadians(beta)) * Math.Sin(CAACoordinateTransformation.DegreesToRadians(lambda0 - lambda)));
double betah = Delta / R * beta;
//What will be the return value
CAASelenographicMoonDetails details = new CAASelenographicMoonDetails();
//Calculate the optical libration
double omega = 0;
double DeltaU = 0;
double sigma = 0;
double I = 0;
double rho = 0;
double ldash0 = 0;
double bdash0 = 0;
double ldash20 = 0;
double bdash20 = 0;
double epsilon = 0;
CalculateOpticalLibration(JD, lambdah, betah, ref ldash0, ref bdash0, ref ldash20, ref bdash20, ref epsilon, ref omega, ref DeltaU, ref sigma, ref I, ref rho);
details.l0 = ldash0 + ldash20;
details.b0 = bdash0 + bdash20;
details.c0 = CAACoordinateTransformation.MapTo0To360Range(450 - details.l0);
return(details);
}
protected static CAAPhysicalMoonDetails CalculateHelper(double JD, ref double Lambda, ref double Beta, ref double epsilon, ref CAA2DCoordinate Equatorial)
{
//What will be the return value
CAAPhysicalMoonDetails details = new CAAPhysicalMoonDetails();
//Calculate the initial quantities
Lambda = CAAMoon.EclipticLongitude(JD);
Beta = CAAMoon.EclipticLatitude(JD);
//Calculate the optical libration
double omega = 0;
double DeltaU = 0;
double sigma = 0;
double I = 0;
double rho = 0;
CalculateOpticalLibration(JD, Lambda, Beta, ref details.ldash, ref details.bdash, ref details.ldash2, ref details.bdash2, ref epsilon, ref omega, ref DeltaU, ref sigma, ref I, ref rho);
double epsilonrad = CAACoordinateTransformation.DegreesToRadians(epsilon);
//Calculate the total libration
details.l = details.ldash + details.ldash2;
details.b = details.bdash + details.bdash2;
double b = CAACoordinateTransformation.DegreesToRadians(details.b);
//Calculate the position angle
double V = omega + DeltaU + CAACoordinateTransformation.DegreesToRadians(sigma) / Math.Sin(I);
double I_rho = I + CAACoordinateTransformation.DegreesToRadians(rho);
double X = Math.Sin(I_rho) * Math.Sin(V);
double Y = Math.Sin(I_rho) * Math.Cos(V) * Math.Cos(epsilonrad) - Math.Cos(I_rho) * Math.Sin(epsilonrad);
double w = Math.Atan2(X, Y);
Equatorial = CAACoordinateTransformation.Ecliptic2Equatorial(Lambda, Beta, epsilon);
double Alpha = CAACoordinateTransformation.HoursToRadians(Equatorial.X);
details.P = CAACoordinateTransformation.RadiansToDegrees(Math.Asin(Math.Sqrt(X * X + Y * Y) * Math.Cos(Alpha - w) / (Math.Cos(b))));
return(details);
}
public static AstroRaDec GetPlanet(double jDate, EO planetIn, double locLat, double locLong, double locHeight)
{
int planet = (int)planetIn;
//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
// static CAAGalileanMoonsDetails galDetails;
//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
// static CAAEllipticalPlanetaryDetails jupDetails;
//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
// static CAAPhysicalJupiterDetails jupPhisical;
//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
// static double jDateLast = 0;
locLong = -locLong;
if (planet < 9)
{
EPD Details = ELL.Calculate(jDate, planetIn);
COR corrected = CAAParallax.Equatorial2Topocentric(Details.ApparentGeocentricRA, Details.ApparentGeocentricDeclination, Details.ApparentGeocentricDistance, locLong, locLat, locHeight, jDate);
return(new AstroRaDec(corrected.X, corrected.Y, Details.ApparentGeocentricDistance, false, false));
}
else if (planet == 9)
{
double lat = CAAMoon.EclipticLatitude(jDate);
double lng = CAAMoon.EclipticLongitude(jDate);
double dis = CAAMoon.RadiusVector(jDate) / 149598000;
double epsilon = CAANutation.TrueObliquityOfEcliptic(jDate);
COR d = CT.Ec2Eq(lng, lat, epsilon);
COR corrected = CAAParallax.Equatorial2Topocentric(d.X, d.Y, dis, locLong, locLat, locHeight, jDate);
return(new AstroRaDec(corrected.X, corrected.Y, dis, false, false));
}
else
{
if (jDate != jDateLast)
{
jupDetails = ELL.Calculate(jDate, (EO)4);
jupPhisical = CAAPhysicalJupiter.Calculate(jDate);
COR corrected = CAAParallax.Equatorial2Topocentric(jupDetails.ApparentGeocentricRA, jupDetails.ApparentGeocentricDeclination, jupDetails.ApparentGeocentricDistance, locLong, locLat, locHeight, jDate);
jupDetails.ApparentGeocentricRA = corrected.X;
jupDetails.ApparentGeocentricDeclination = corrected.Y;
galDetails = GM.Calculate(jDate);
jDateLast = jDate;
}
double jupiterDiameter = 0.000954501;
double scale = (Math.Atan(.5 * (jupiterDiameter / jupDetails.ApparentGeocentricDistance))) / 3.1415927 * 180;
double raScale = (scale / Math.Cos(jupDetails.ApparentGeocentricDeclination / 180.0 * 3.1415927)) / 15;
double xMoon = 0;
double yMoon = 0;
double zMoon = 0;
bool shadow = false;
bool eclipsed = false;
switch (planet)
{
case 10: // IO
xMoon = galDetails.Satellite1.ApparentRectangularCoordinates.X;
yMoon = galDetails.Satellite1.ApparentRectangularCoordinates.Y;
zMoon = galDetails.Satellite1.ApparentRectangularCoordinates.Z;
eclipsed = galDetails.Satellite1.bInEclipse;
shadow = galDetails.Satellite1.bInShadowTransit;
break;
case 11: //Europa
xMoon = galDetails.Satellite2.ApparentRectangularCoordinates.X;
yMoon = galDetails.Satellite2.ApparentRectangularCoordinates.Y;
zMoon = galDetails.Satellite2.ApparentRectangularCoordinates.Z;
eclipsed = galDetails.Satellite2.bInEclipse;
shadow = galDetails.Satellite2.bInShadowTransit;
break;
case 12: //Ganymede
xMoon = galDetails.Satellite3.ApparentRectangularCoordinates.X;
yMoon = galDetails.Satellite3.ApparentRectangularCoordinates.Y;
zMoon = galDetails.Satellite3.ApparentRectangularCoordinates.Z;
eclipsed = galDetails.Satellite3.bInEclipse;
shadow = galDetails.Satellite3.bInShadowTransit;
break;
case 13: //Callisto
xMoon = galDetails.Satellite4.ApparentRectangularCoordinates.X;
yMoon = galDetails.Satellite4.ApparentRectangularCoordinates.Y;
zMoon = galDetails.Satellite4.ApparentRectangularCoordinates.Z;
eclipsed = galDetails.Satellite4.bInEclipse;
shadow = galDetails.Satellite4.bInShadowTransit;
break;
case 14: // IO Shadow
xMoon = galDetails.Satellite1.ApparentShadowRectangularCoordinates.X;
yMoon = galDetails.Satellite1.ApparentShadowRectangularCoordinates.Y;
zMoon = galDetails.Satellite1.ApparentShadowRectangularCoordinates.Z * .9;
shadow = galDetails.Satellite1.bInShadowTransit;
break;
case 15: //Europa Shadow
xMoon = galDetails.Satellite2.ApparentShadowRectangularCoordinates.X;
yMoon = galDetails.Satellite2.ApparentShadowRectangularCoordinates.Y;
zMoon = galDetails.Satellite2.ApparentShadowRectangularCoordinates.Z * .9;
shadow = galDetails.Satellite2.bInShadowTransit;
break;
case 16: //Ganymede Shadow
xMoon = galDetails.Satellite3.ApparentShadowRectangularCoordinates.X;
yMoon = galDetails.Satellite3.ApparentShadowRectangularCoordinates.Y;
zMoon = galDetails.Satellite3.ApparentShadowRectangularCoordinates.Z * .9;
shadow = galDetails.Satellite3.bInShadowTransit;
break;
case 17: //Callisto Shadow
xMoon = galDetails.Satellite4.ApparentShadowRectangularCoordinates.X;
yMoon = galDetails.Satellite4.ApparentShadowRectangularCoordinates.Y;
zMoon = galDetails.Satellite4.ApparentShadowRectangularCoordinates.Z * .9;
shadow = galDetails.Satellite4.bInShadowTransit;
break;
}
double xTemp;
double yTemp;
double radians = jupPhisical.P / 180.0 * 3.1415927;
xTemp = xMoon * Math.Cos(radians) - yMoon * Math.Sin(radians);
yTemp = xMoon * Math.Sin(radians) + yMoon * Math.Cos(radians);
xMoon = xTemp;
yMoon = yTemp;
return(new AstroRaDec(jupDetails.ApparentGeocentricRA - (xMoon * raScale), jupDetails.ApparentGeocentricDeclination + yMoon * scale, jupDetails.ApparentGeocentricDistance + (zMoon * jupiterDiameter / 2), shadow, eclipsed));
}
}
