ASCOM Library
Position
Adjust the position vector for proper motion (including foreshortening effects)
Definition
Namespace: ASCOM.Tools.NovasCom
Assembly: ASCOM.AstrometryTools (in ASCOM.AstrometryTools.dll) Version: 2.2.1+77356f79b05b579f6d860a4edd5934fda9fe29e4
True if successful or throws an exception.
Assembly: ASCOM.AstrometryTools (in ASCOM.AstrometryTools.dll) Version: 2.2.1+77356f79b05b579f6d860a4edd5934fda9fe29e4
C#
public bool ProperMotion(
VelocityVector vel,
double tjd1,
double tjd2
)VB
Public Function ProperMotion (
vel As VelocityVector,
tjd1 As Double,
tjd2 As Double
) As BooleanParameters
- vel VelocityVector
- The velocity vector of the object
- tjd1 Double
- The first epoch (Terrestrial Julian Date)
- tjd2 Double
- The second epoch (Terrestrial Julian Date)
Return Value
BooleanTrue if successful or throws an exception.
Exceptions
| ValueNotSetException | If the position vector x, y or z values has not been set |
| HelperException | If the supplied velocity vector does not have valid x, y and z components |