Fixed stars and parans
Beyond the seven planets the tradition watches the named stars: Aldebaran in Taurus, Regulus in Leo, Spica in Virgo, Antares in Scorpio, the four royal stars at the cardinal angles, and the cautionary Algol. A planet conjunct a fixed star within a tight orb is read as taking on the star's classical signification. The technique is older than the zodiac; Manilius and Ptolemy both treat it.
Conjunction by longitude
The simplest fixed-star contact: a planet within 1° to 2° of a named star's ecliptic longitude. Ptolemy's catalogue and the Renaissance star-lists give each star a classical signification — Regulus 'royal honour,' Spica 'gift of fortune,' Algol 'violence and severance.' The tradition warns against simplifying the meanings into headline keywords; the older sources read each star through the planetary nature ascribed to it (e.g., Regulus 'of the nature of Mars and Jupiter').
Parans (paranatellonta)
A paran is a star simultaneously rising, culminating, setting, or anti-culminating with a planet at the same moment, given the chart's latitude. Parans are not visible from the longitude alone — they depend on declination and rising time. A planet that has no longitude conjunction with Sirius can still 'paran' Sirius if both are on an angle at the same instant. The technique appears in Vettius Valens and Manilius.
Heliacal events
Heliacal rising and setting are visibility events — a star's first dawn appearance after a period of solar conjunction (heliacal rise), or its last evening visibility before being lost (heliacal set). Hellenistic mundane astrology watches these events as omens. Netra surfaces heliacal phase data inline with the fixed-stars view.
How Netra uses it
The Stars view lists every fixed-star conjunction within configurable orb (default 1°) and the parans of every planet to every angle. Heliacal phase is reported. The classical signification associated with each star is shown verbatim from the public-domain catalogues only.
Illustrative natal chart — the technique above applies to any chart you compute in Netra.
Sources
- Claudius Ptolemy, Tetrabiblos, Book I (star catalogue)
- Manilius, Astronomica, Book V
- Vettius Valens, Anthology
See Sources for the full corpus and the public-domain policy.
Related
- Essential dignities — The five-fold table of planetary strength by zodiacal placement — domicile, exaltation, triplicity, term, and face.
- Sect — The diurnal–nocturnal split that determines which planets are in their preferred environment.