Ephemeris Presets
An ephemeris preset saves a combination of ephemeris settings, the location, zodiac, coordinate origin, and reference plane, under a name you choose. Presets are shared across studies, so you can reuse a familiar setup without entering it again. A default preset is applied to each new study you create.
Ephemeris presets are reached from the presets button beside the Location dropdown in a study's Ephemeris Settings.
When you create or rename a preset, Cygnus shows a small prompt with a single text field and Save and Cancel buttons. The Save button stays disabled until you type a name.
Apply an Ephemeris Preset
To apply a saved preset to the current study:
- Click the presets button beside the Location dropdown.
- Click Presets to open the saved presets.
- Click the name of the preset to apply it.
The study's ephemeris settings are filled in from the preset.

Create a New Ephemeris Preset
To save the current ephemeris settings as a new preset:
- Click the presets button beside the Location dropdown.
- Click New Preset.
- Type a name and click Save.

Set a Preset as the Default
The default preset is applied automatically to new studies. To set one:
- Click the presets button beside the Location dropdown.
- Click Presets to open the saved presets.
- Right-click the preset and select Set Default.
The default preset is marked with a chevron in the list.

Clear the Default Preset
To stop applying any preset to new studies:
- Click the presets button beside the Location dropdown.
- Click Clear Default.

Rename an Ephemeris Preset
To change a preset's name:
- Click the presets button beside the Location dropdown.
- Click Presets to open the saved presets.
- Right-click the preset and select Rename.
- Type the new name and click Save.

Replace an Ephemeris Preset
Replacing a preset overwrites it with the study's current ephemeris settings. To replace one:
- Click the presets button beside the Location dropdown.
- Click Presets to open the saved presets.
- Right-click the preset and select Replace.

Delete an Ephemeris Preset
To remove a preset from the shared library:
- Click the presets button beside the Location dropdown.
- Click Presets to open the saved presets.
- Right-click the preset and select Delete.
