public static RiseTransitSetModel GetRiseTransitSet(
this CelestialObjectPositionModel celestialObjectPosition,
CelestialObjectPositionModel earthPosition,
double longitudeDegrees,
double latitudeDegrees)
{
var transitTimeSpan = celestialObjectPosition.GetTransitTimeSpan(earthPosition, longitudeDegrees);
var transit = new DateTimeOffset(
celestialObjectPosition.ReferenceDate.DateTime.Year,
celestialObjectPosition.ReferenceDate.DateTime.Month,
celestialObjectPosition.ReferenceDate.DateTime.Day,
transitTimeSpan.Hours,
transitTimeSpan.Minutes,
transitTimeSpan.Seconds,
transitTimeSpan.Milliseconds,
TimeSpan.Zero);
var hourHorizonDegrees = celestialObjectPosition.GetHourHorizon(latitudeDegrees, 0);
var hourHorizonTimeSpan = DegreeHelper.DegreeToTimeSpan(hourHorizonDegrees);
var rise = transit - hourHorizonTimeSpan;
var set = transit + hourHorizonTimeSpan;
return(new RiseTransitSetModel(rise, transit, set));
}
public void GetTransitTimeSpanTest()
{
var expected = new TimeSpan(0, 4, 20, 41, 760);
var actual = JupiterPosition.GetTransitTimeSpan(EarthPosition, -5);
Assert.Equal(expected, actual);
}
