Hotspot Transits Study
Researchers keep personal lists of sensitive degrees, such as fixed stars, eclipse points and national chart angles, and want the crossing dates for the bodies they follow. The Hotspot Transits study supplies them, generating an event each time a body crosses a fixed longitudinal degree on the zodiac.
Each event records the body, its position at the crossing, and the hotspot degree it crossed.
Create a Hotspot Transits Study
To add a Hotspot Transits study to the current workspace:
- Click Mundane Studies → Critical Degree Transits on the menu bar.
- Click Hotspot Transits in the Critical Degree Transits submenu.
Alternatively, click the Ingress Studies drop-down button on the toolbar and select Hotspot Transits from its flyout.
The new study appears at the bottom of the Studies list and is selected automatically, so its settings open immediately. It takes its name from the study type.
What This Study Finds
An event is generated at the exact moment a body reaches one of the critical degrees entered in the Hotspot Degrees table. The degrees are fixed points on the zodiac, so a crossing is generated however the body arrives at the degree.
Because any degree can be entered in the table, this study can also be used to produce sign ingresses: enter the thirty-degree multiples and the crossings you get back are the sign changes. Where that is all you want, the Sign Ingresses Study saves you entering them by hand.
The settings column holds the Study Name, the ephemeris settings and the study date range, followed by a Bodies selection list and the Hotspot Degrees table holding the degrees to watch.
Events Table Columns
The events table lists one row per crossing. Several columns are hidden by default, as the table notes. Right-click any column header to show or hide a column, as described in Choose Events Table Columns. The coordinate columns follow the study's Reference Plane: their headers read Longitude and Latitude in the ecliptic plane, and Right Asc and Declination in the equatorial plane. The table below gives the ecliptic-plane headers.
| Column | Description |
|---|---|
| Date Time | Date and time of the crossing, in the application's long date and time format. Always the first column, and it cannot be moved. Visible by default. |
| Body | Name of the celestial body. Visible by default. |
| Body Longitude | The body's primary coordinate, in degrees. Hidden by default. |
| Body Sign | The body's position as degrees, sign and minutes of the zodiac. Visible by default. |
| Body Latitude | The body's secondary coordinate, in degrees. Hidden by default. |
| Body Distance | The body's radial distance, in astronomical units (AU). Hidden by default. |
| Body Speed | The body's speed, in degrees per day. Hidden by default. |
| Hotspot Longitude | The critical degree that was crossed, as a primary coordinate in degrees. Hidden by default. |
| Hotspot Sign | The critical degree expressed as degrees, sign and minutes of the zodiac. Visible by default. |
| Event Interval | Elapsed time since the previous event in the list. Hidden by default. |