What is the difference between the mean and true lunar node?
Both are calculated descriptions of the Moon’s orbital-plane intersection, not physical planets. The mean node smooths short-period variation, while the true node includes a model of that oscillation. An ingress date or sign label is incomplete unless it names which node convention was used.
Direct answer
Both are calculated descriptions of the Moon’s orbital-plane intersection, not physical planets. The mean node smooths short-period variation, while the true node includes a model of that oscillation. An ingress date or sign label is incomplete unless it names which node convention was used.
Practical use
What to do with this answer
Store the node convention with longitude, speed, frame, ephemeris model, and boundary distance. Do not mix a true-node placement with a rule defined for a mean-node chronology without disclosure.
Distinctions to preserve
- Orbital intersection versus physical body
- Smoothed model versus oscillating model
- Node convention versus zodiac frame
Limitations
- Neither convention establishes interpretive efficacy.
- Small model differences can matter near a sign boundary.
Authority graph
Which existing contracts carry the answer
These linked pages carry the underlying definition, method, or tradition record and its own sources. This page preserves their boundaries rather than becoming a new source of independent authority.
Mean versus true lunar node →
Establishes: The mean node follows a smoothed precessing orbit-plane model; the true node adds periodic oscillation from the instantaneous lunar orbit model.
Boundary: Neither node model has demonstrated predictive superiority in Maha’s current evidence corpus.
Lunar node ingress calculation reference →
Establishes: A Lunar node ingress is a root of the signed angular distance between its declared geocentric ecliptic longitude and a selected 30-degree zodiac boundary. A node ingress depends on mean-versus-true node choice; the node is a calculated orbital intersection, not a physical planet.
Boundary: The crossing does not establish that a new life or business phase begins, that an event will occur, or that Lunar node causes an outcome.
One celestial direction, two sign labels →
Establishes: Physical state vectors, apparent direction, direct or retrograde motion, and angular relationships remain facts about the same calculated moment.
Boundary: Do not describe a planet as simultaneously occupying an unlabeled hybrid sign or choose whichever sign yields the more compelling narrative.
Equivalent questions
These query forms resolve to this same answer identity; they are not separate claims.
- Should I use true node or mean node?
- Why does Rahu change position?
- Is the lunar node a planet?
- Which node is used for ingress dates?
Non-claim
This answer is a method or tradition description. It is not a personalized reading and does not certify predictive validity, causation, medical outcomes, legal status, investment value, or guaranteed events.