Heliacal Phenomena

To view the details for the Heliacal Phenomena for the current chart, please cast a new chart or select the existing active chart and then use the Details/Heliacal Phenomena menu.
The following details will be presented in the Heliacal Phenomena table:

• Planet. The planet for which Heliacal Phenomena are calculated.
  
• In Zodiac. This column displays the relative zodiacal position of the planet at the time of birth.
• Arcus Visionis Three values are displayed:
1. Topocentric Arcus Visionis.
   
2. Geocentric Arcus Visionis.
   
3. Smallest Arcus Visionis.
   
• Visibility Information:
1. First Visible - the first moment when the celestial body becomes visible.
2. Best Visibility - the moment of the best visibility of the celestial body.
3. Last Visible - the last moment when the celestial body is still visible.
4. Magnitude. The magnitude of the celestial body.
5. Extinction. The extinction angle determines at what apparent altitude a celestial body becomes visible.
   
• Rise/Set Sun diff. This column presents the time between the nearest Sun Rise or Sun Set and celestial body's nearest rise or set event.
• Parallax. The celestial body's parallax.