private ICollection <AstroEvent> FindLunarEclipses(AstroEventsContext context)
{
List <AstroEvent> events = new List <AstroEvent>();
int ln = LunarEphem.Lunation(context.From, LunationSystem.Meeus);
do
{
LunarEclipse eclipse = LunarEclipses.NearestEclipse(ln, next: true);
double jd = eclipse.JulianDayMaximum;
if (jd <= context.To)
{
double jdMax = jd;
string type = Text.Get($"LunarEclipse.Type.{eclipse.EclipseType}");
string phase = Formatters.Phase.Format(eclipse.Magnitude);
var elements = GetLunarEclipseElements(jdMax);
var local = LunarEclipses.LocalCircumstances(eclipse, elements, context.GeoLocation);
string localVisibility = GetLocalVisibilityString(eclipse, local);
events.Add(new AstroEvent(jdMax, Text.Get("LunarEclipse.Event", ("type", type), ("phase", phase), ("localVisibility", localVisibility)), moon));
ln = eclipse.MeeusLunationNumber + 1;
}
else
{
break;
}
}while (true);
return(events);
}
/// <inheritdoc/>
public ICollection <LunarEclipseLocalCircumstances> FindLocalCircumstancesForCities(LunarEclipse e, PolynomialLunarEclipseElements be, ICollection <CrdsGeographical> cities, CancellationToken?cancelToken = null, IProgress <double> progress = null)
{
return(cities
.Distinct()
.Select(c => LunarEclipses.LocalCircumstances(e, be, c))
.ToArray());
}