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Secondary Progressed Charts

In the Chart Menu on a radix/natal chart page, select the Secondary Progressed option to instantly cast a Secondary Progressed (SP) chart for the radix. By default, LUNA will calculate the SP chart for the current time and the radix location. You can easily change this once the chart is cast by using the Spacetime Navigator panel.


LUNA calculates the angles and house cusps of secondary progressions according to Solar Arc Longitude. This means once the progressed Sun is calculated, the same progression value is applied to the Midheaven. In turn, the remaining angles and house cusps are calculated based on this progressed MC value.

Using the Spacetime Navigator when viewing a Secondary Progressed chart will animate the SP chart. If you’re viewing a biwheel of Transits + SP, the Spacetime Navigator will animate both charts appropriately.

  • To close the SP chart, select “Return to Natal Chart” option from Chart Menu.
  • To save the current SP chart, select the Save link from the Info Panel.
Chart Menu for an auxiliary chart.
The Chart Menu provides options specific to this auxiliary chart type. Select “Return to Natal Chart” to close the auxiliary chart and view the radix/natal chart again.

When viewing this auxiliary chart or its corresponding radix chart, any of your previously saved charts of this type are available from the Saved Charts button. You can save as many auxiliary charts as you like; they will appear in this popup window in chronological order.

Popup window showing saved Secondary Progressed charts.
This popup becomes available when you have one or more saved SP charts.

Deleting Saved Charts

Select the red “trash” icon from the Info Panel to delete a previously saved chart. LUNA will ask you to confirm the delete operation which will also delete any associated chart notes you may have saved with it.

Updated on February 18, 2024

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