Plate.MinMatchStars Property

Plate.MinMatchStars (read-write, Integer)

[advanced] The number of image and catalog stars that must match for successful plate solution (default=0 for automatic calculation).

Syntax

Plate.MinMatchStars [= Integer]

The property syntax has these parts:

Part	Description
Value (Integer)	[advanced] The number of image and catalog stars that must match for successful plate solution (default=0 for automatic calculation).

Remarks

This is an advanced property. In most cases, you will not need to change this value, the default will work. If you are having trouble getting plate solving to work, first verify the accuracy of ArcsecPerPixelHoriz and ArcsecPerPixelVert.

When this property is set to 0, the minimum number of stars needed for a match is calculated by PinPoint. The number varies based on the number of detected stars in the image and the number of catalog stars in the field area. You should let PinPoint make this calculation in order to avoid false matches or missed matches.The minimum legal value for this property is 6 stars. Set this value higher when you want to assure high astrometric accuracy and are willing to accept failures to match in marginal situations. If this valus is set too low, PinPoint may compute a false match. Beware of images with hundreds of stars in them, hundreds of catalog stars in the field and MinMatchStars settings of 7 or 8.

The legal values for this property are 0 or the range from 7 to 100.