ascending node: the point at which an orbit crosses the ecliptic plane going north
node: (astronomy) a point where an orbit crosses a plane
myrtales: Myrtaceae; Combretaceae; Elaeagnaceae; Haloragidaceae; Melastomaceae; Lecythidaceae; Lythraceae; Rhizophoraceae; Onagraceae; Lecythidaceae; Punicaceae