@zodiacs/engine 1.0.0
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    Interface CalcSiderealChart

    A chart's sidereal longitudes, degrees in [0, 360), as siderealChart() gives them.

    interface CalcSiderealChart {
        ascendant: number | null;
        ayanamsa: CalcAyanamsaValue;
        bodies: readonly { body: BodyName; lon: number }[];
        cusps: readonly number[] | null;
        houseSystem: HouseSystem | null;
        midheaven: number | null;
    }
    Index
    ascendant: number | null

    Null when the chart has no angles.

    The ayanamsa at the chart's instant and on its clock, degrees, whose true value is subtracted.

    bodies: readonly { body: BodyName; lon: number }[]

    The chart's bodies, in its order.

    cusps: readonly number[] | null

    First house first; whole-sign cusps start at the sidereal ascendant's sign. Null without houses.

    houseSystem: HouseSystem | null

    The house system as computed, after any polar fallback; null without houses.

    midheaven: number | null