NovasLocalStar Method

public static short LocalStar(
	double JdTt,
	double DeltaT,
	CatEntry3 Star,
	OnSurface Position,
	Accuracy Accuracy,
	ref double Ra,
	ref double Dec
)

Public Shared Function LocalStar ( 
	JdTt As Double,
	DeltaT As Double,
	Star As CatEntry3,
	Position As OnSurface,
	Accuracy As Accuracy,
	ByRef Ra As Double,
	ByRef Dec As Double
) As Short

Parameters

JdTt  Double

TT Julian date for local place. delta_t (double)

DeltaT  Double

Difference TT-UT1 at 'JdTt', in seconds of time.

Star  CatEntry3

catalog entry structure containing catalog data for the object in the ICRS

Position  OnSurface

Structure specifying the position of the observer

Accuracy  Accuracy

Specifies accuracy level.

Ra  Double

Local right ascension in hours, referred to the 'local GCRS'.

Dec  Double

Local declination in degrees, referred to the 'local GCRS'.

Return Value

               0 ... Everything OK
               1 ... Invalid value of 'Where' in structure 'Location'
            > 10 ... Error code from function 'MakeObject'
            > 20 ... Error code from function 'Place'.
            

Reference