True (osculating) longitude of the Moon's ascending node, degrees
[0, 360), true equinox of date. Computed the way Swiss Ephemeris
does: the instantaneous orbit plane from the Moon's position and
velocity (r × v), whose ascending intersection with the ecliptic is
the node. Many jyotish traditions prefer this "true Rahu" over the
mean node.
Parameters
jdUt: number
Returns number
Example
trueLunarNode(2451545); // ≈ 123.97 at J2000 (mean node is ≈ 125.07)
True (osculating) longitude of the Moon's ascending node, degrees [0, 360), true equinox of date. Computed the way Swiss Ephemeris does: the instantaneous orbit plane from the Moon's position and velocity (r × v), whose ascending intersection with the ecliptic is the node. Many jyotish traditions prefer this "true Rahu" over the mean node.