public Coordinates Transform(Epoch epoch)
{
var now = DateTime.Now;
var jdUTC = Astrometry.GetJulianDate(now);
var zenithDistance = Astrometry.ToRadians(90d - Altitude.Degree);
var deltaUT = Astrometry.DeltaUT(now);
var raRad = 0d;
var decRad = 0d;
SOFA.TopocentricToCelestial("A", Azimuth.Radians, zenithDistance, jdUTC, 0d, deltaUT, Longitude.Radians, Latitude.Radians, 0d, 0d, 0d, 0d, 0d, 0d, 0d, ref raRad, ref decRad);
var ra = Angle.ByRadians(raRad);
var dec = Angle.ByRadians(decRad);
var coordinates = new Coordinates(ra, dec, Epoch.J2000);
return(coordinates.Transform(epoch));
}
public static Angle ByDegree(double degree)
{
return(new Angle(degree, Astrometry.ToRadians(degree), Astrometry.DegreesToHours(degree)));
}
public static Angle ByHours(double hours)
{
var degree = Astrometry.HoursToDegrees(hours);
return(new Angle(degree, Astrometry.ToRadians(degree), hours));
}