NovasRefract Method

Computes atmospheric refraction in zenith distance.

Definition

Namespace: ASCOM.Tools.Novas31
Assembly: ASCOM.AstrometryTools (in ASCOM.AstrometryTools.dll) Version: 3.0.0-rc.1+86c25ce733aebb4d8b1b8a62e84770ea5e972bea

C#

public static double Refract(
	OnSurface Location,
	RefractionOption RefOption,
	double ZdObs
)

VB

Public Shared Function Refract ( 
	Location As OnSurface,
	RefOption As RefractionOption,
	ZdObs As Double
) As Double

Parameters

Location OnSurface: Structure containing observer's location.
RefOption RefractionOption: 1 ... Use 'standard' atmospheric conditions; 2 ... Use atmospheric parameters input in the 'Location' structure.
ZdObs Double: Observed zenith distance, in degrees.

Return Value

Double
Atmospheric refraction, in degrees.

Remarks

This version computes approximate refraction for optical wavelengths. This function can be used for planning observations or telescope pointing, but should not be used for the reduction of precise observations.

Version Information

.NET Standard

Supported in: 2.0