@zodiacs/engine 1.0.0
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    Interface HouseSpeedsExperimental

    Speeds in degrees per day, at the sidereal rate, with latitude and obliquity fixed.

    As houseSpeeds is.

    interface HouseSpeeds {
        angles: Angles;
        cusps: number[];
        fellBack: boolean;
        system: HouseSystem;
    }
    Index
    angles: Angles

    The ascendant and descendant share a speed, as do the midheaven and imum coeli.

    cusps: number[]

    In the order of computeHouses's cusps: index 0 is the 1st house.

    fellBack: boolean
    system: HouseSystem

    The system of the cusps: the one asked for, or whole sign where Placidus or Koch falls back.