Contents 

Mira Pro x64 User's Guide

World Coordinate System

Describes the FITS World Coordinate System.

Image Coordinate System

Describes how coordinate systems are used for measuring distances, angles, centroid positions, and other quantities in images.

Pixel Coordinate Definition

Describes how pixels are referenced and counted in image coordinates.

Subpixel Coordinate Definition

Describes how fractional pixels are counted in image coordinates.

Angle Measurement Definition

Describes how angles are measured for different coordinate systems.

Plot Coordinate Systems

Describes how coordinate systems are used in displaying 1-D data.

Plotting in World Coordinates

Describes how 1-D plots implement the image coordinate system.

Image Display Orientation

Describes how rows are counted in different image formats.

FITS Image Orientation

Describes how FITS format images are oriented for display.

Image Coordinate Display

Describes real-time readout of the image pointer (crosshair).

Adjusting the Image Cursor

Describes how to adjust and position the image cursor.

World Coordinate System Keywords

Describes header keywords used to describe world coordinate systems.

Set X-Axis Linear Format

Configures the X world coordinate display when the X coordinate is calibrated in linear units.

Set Y-Axis Linear Format

Configures the Y world coordinate display when the Y coordinate is calibrated in linear units.

Set Pixel Value Format

Configures the display of pixel (Z) values.

Astrometric Calibration

Creates a "plate solution" for an image using the coordinates of at least 3 marked stars.

Set Arcsecond Scale

Assigns an arcsecond scale to an image.

Set Equatorial Scale

Assigns a simple equatorial coordinate system of (right ascension, declination) to an image.

Set Independent Linear Scales

Sets linear coordinate scales that differ in each axis.

Set Linear Coordinate Units

Sets the name for linear coordinate units in each axis.

Calibrate Linear Scale

Uses a mouse-drawn line to create a linear calibration in both axes based on a user-defined distance and coordinate units.

Delete WCS

Deletes any type of World Coordinate System scale from the image, reverting it to the (column,row) system.

List WCS Keywords

Lists the values of world coordinate system keywords in the image header.

Go To Coordinates

Moves the image cursor to a target position, or loads the current position in either pixel or world coordinates.

Go To Object

Moves the image cursor to the work coordinates stored in the OBJECTRA and OBJCTDEC keywords.