ITelescopeV3SlewToCoordinatesAsync Method |
Move the telescope to the given equatorial coordinates, return immediately after starting the slew.
Namespace: ASCOM.DeviceInterfaceAssembly: ASCOM.DeviceInterfaces (in ASCOM.DeviceInterfaces.dll) Version: 6.0.0.0 (6.2.0.2774)
Syntax void SlewToCoordinatesAsync(
double RightAscension,
double Declination
)
Sub SlewToCoordinatesAsync (
RightAscension As Double,
Declination As Double
)
void SlewToCoordinatesAsync(
double RightAscension,
double Declination
)
Parameters
- RightAscension
- Type: SystemDouble
The destination right ascension (hours). Copied to TargetRightAscension. - Declination
- Type: SystemDouble
The destination declination (degrees, positive North). Copied to TargetDeclination.
Exceptions Exception | Condition |
---|
MethodNotImplementedException | If the method is not implemented and CanSlewAsync is False |
InvalidValueException | If an invalid right ascension or declination is given. |
Remarks
This method must be implemented if
CanSlewAsync returns True. Raises an error if starting the slew failed.
Returns immediately after starting the slew. The client may monitor the progress of the slew by reading
the
RightAscension,
Declination, and
Slewing properties during the slew. When the slew completes,
Slewing becomes False. The slew may fail to start if the target coordinates are beyond limits
imposed within the driver component. Such limits include mechanical constraints imposed
by the mount or attached instruments, building or dome enclosure restrictions, etc.
The target coordinates are copied to TargetRightAscension and TargetDeclination
whether or not the slew succeeds.
Raises an error if AtPark is True, or if Tracking is False.
See Also