Ingress
A body crossing one of the 30° boundaries on the ecliptic, moving from one sign into the next.
The ecliptic's 360° is divided into twelve equal 30° signs. An ingress is a crossing of one of those lines. Because the boundaries sit at 0°, 30°, 60° and so on, the longitude at any ingress is always an exact multiple of 30.
The Sun does this monthly, the Moon every two and a half days, Pluto about every twenty years. So how much an ingress means depends entirely on which body.
A technical note, because it once broke a feature here. Since ingress longitudes are multiples of 30 and so are all the aspect angles, any natal planet near a sign boundary gets hit exactly by every single ingress. That's not astrology, that's the coordinate system. So when this site personalises the calendar, ingresses report only which house they fall in — no aspects.
- Ecliptic longitudeThe angle along the ecliptic measured from the vernal point, 0 to 360° — the coordinate behind every position in a chart.
- HouseOne of twelve divisions of the sky, cut from your birth time and place, each covering an area of life.
- AspectThe angular distance between two points on the ecliptic, counted only when it lands on one of a few specific values.