ReadonlyboundThe mean ayanamsa's difference from ERFA's construction of the same
definition, the bound a sidereal result's own bounds add. The nutation
cancels from a sidereal longitude; true, read on its own, also differs
from IAU 2000A's by the nutation model's difference (docs/calc.md).
ReadonlymeanThe mean ayanamsa, counted along the mean ecliptic of date.
ReadonlynameThe definition's name.
ReadonlynutationThe engine's nutation in longitude (IAU 2000B).
ReadonlysubtractedThe one subtracted: "true" in the true ecliptic of date, "mean" in the mean ecliptic of date.
ReadonlytrueThe mean ayanamsa plus the nutation in longitude, counted along the true ecliptic of date, in (−180°, 180°].
The ayanamsa of a sidereal result, at its instant and on its clock, in the result's angular unit; calc(), houses() and chart() give the same shape.