Plate.MagZeroPoint (read-only, Double)
The reference magnitude used to compute the magnitude from flux values for this plate.
Plate.MagZeroPoint
The property syntax has these parts:
Part | Description |
---|---|
Value (Double) | The reference magnitude used to compute the magnitude from flux values for this plate. |
mag = mz - (2.5 * log(flux))
where mz is the magnitude zero point, and log() is the base-10 logarithm.
This value is written or updated in the FITS header with the keyword ZEROPT if the UpdateFITS() method is called. Thus, the plate may be used later by PinPoint without calling Plate.Solve(), and the magnitude values for the PlateStar objects will be valid.