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Knowledge Base

Bradley Siderograph


The book "Stock Market Prediction: The Planetary Barometer and How to Use It" was written in 1948 by Donald Bradley.

This book described a new indicator referred to as the Bradley Siderograph (or Star Graph), designed to plot correspondences between various planetary aspects and market action. The tool displays long-term, mid-term and declination events.

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To apply the Bradley Siderograph tool to your chart, select the Tools menu located at the top of the Optuma screen.

From the Astro tools, select Bradley Siderograph.

Left-click on the chart and the Bradley Siderograph will appear on the chart.

Actions & Properties


Add to Toolbar: Click this action to add the selected Bradley Siderograph to your custom toolbar.

Apply Settings to All: When multiple Bradley Siderograph tools have been applied to a chart, page or workbook, this action can be used to apply the settings of the one selected to other instances of the tool. This is a great time saver if an adjustment is made to the tool - such as hiding or adding levels - as this allows all the other Bradley Siderograph tools in the chart, page or entire workbook to be updated instantly.

Copy Data to Clipboard: Will copy the tool's values to the clipboard which can then be inserted into a spreadsheet, for example, allowing for further analysis.

Copy Tool: Allows you to copy the selected Bradley Siderograph, which can then be pasted onto a different chart window.

Move to Back: If the tool is displaying in front of other tools or indicators clicking this action will move the tool to the background.

Move to Front: If the tool is displaying behind other tools or indicators on the chart, clicking this action will bring the tool to the forefront.

Restore Default Settings: Click this action if you have adjusted the default settings of the Bradley Siderograph, and wish to return to the standard properties originally installed with Optuma.

Save Settings as Default: If you have adjusted any of the Properties (colour, for example) you can save the adjustments as your new default setting. Each time the Bradley Siderograph is applied to a chart, the tool will display using the new settings.

Delete: Delete the Bradley Siderograph from the chart.


Tool Name: Allows you to adjust the name of the tool, as it's displayed in the Structures Panel.

Terms: Allows you to select either Long Term, Mid Term or Declination.

Offset: Moves the tool forwards or backwards in time. The offset is measured in bars, so a value of 2 will push the tool forward 2 bars and -2 will move the tool back 2 bars.

Plots: Expands to display the Plot Property menu for the Main Plot, Long Term, Mid Term and Declination. Each will provide the following options:
  • Plot Style - Allows you to change how the tool is displayed on your chart. There are 5 options available: Line, Dot, Histogram, Step and Shaded.
  • Line Style - The Line Style property allows you to adjust the type of the line displayed. There are 8 options available: Solid, Dots, Dash, Dash Dots, Long Dash, Long Dash Dot, Long Dash Dot Dot, Stippled.
  • Line Width - Allows you to adjust the width of the line. Moving the slider bar to the right increases the thickness of the line.
  • Line Colour - Allows you to select the colour of the line. Clicking on the drop down arrow will display a colour swatch. Locate the desired colour and left-click it once to select it.
  • Fill Up / Down Barrier - When the Plot Style is set to Shaded you are able to adjust the barrier value, the default value is 0.00.
  • Fill Up Colour - When the Plot Style is set to Shaded you are then able to alter the Fill Colour for the tool.
  • Fill Down Colour - When the Plot Style is set to Shaded you are then able to alter the Fill Colour for the tool.
  • Fill Transparency - Use this slider bar to adjust the transparency of the shading. Moving the slider to the left will increase the transparency.
  • Visible - When deselected the plot will not be displayed.

Tool Transparency: Use this slider bar to adjust the transparency of the tool. Moving the slider to the left will increase the transparency of the tool.

Visible: Un-tick this checkbox to hide the tool from the chart.

Show In Price Scale: When selected all plot values will be displayed in the Price Scale.

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