ITelescopeV4DeclinationRate Property

double DeclinationRate { get; set; }

Property DeclinationRate As Double
	Get
	Set

property double DeclinationRate {
	double get ();
	void set (double value);
}

Property Value

DeclinationRate Read must be implemented and must not throw a PropertyNotImplementedException.

DeclinationRate Write can throw a PropertyNotImplementedException.

NOTES:

• The property value represents an offset from zero motion.
• If CanSetDeclinationRate is False, this property will always return 0.
• To discover whether this feature is supported, test the CanSetDeclinationRate property.
• The supported range of this property is telescope specific, however, if this feature is supported, it can be expected that the range is sufficient to allow correction of guiding errors caused by moderate misalignment and periodic error.
• If this property is non-zero when an equatorial slew is initiated, the telescope should continue to update the slew destination coordinates at the given offset rate.
• This will allow precise slews to a fast-moving target with a slow-slewing telescope.
• When the slew completes, the TargetRightAscension and TargetDeclination properties should reflect the final (adjusted) destination.
• The units of this property are arcseconds per SI (atomic) second. Please note that for historic reasons the units of the RightAscensionRate property are seconds of RA per sidereal second.

ITelescopeV4 clarification - DeclinationRate is an offset from sidereal tracking rate and must only be applied when tracking at sidereal rate. It must not be applied when tracking at solar, lunar, King or other non-sidereal rates.

Reference