SunObservationAstronomicalTwilightAltitude Field
Gets the altitude below the horizon which defines astronomical twilight (-18°).
Namespace: InnerDrive.GeographyAssembly: InnerDrive.Geography (in InnerDrive.Geography.dll) Version: 5.2.9017.0
public const double AstronomicalTwilightAltitude = -18
Field Value
Double