grahan — the open-source sky engine
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    Function equatorialFromEcliptic

    • Ecliptic longitude/latitude → right ascension/declination (Meeus eq. 13.3 and 13.4).

      Parameters

      • longitude: number
      • latitude: number
      • obliquity: number

      Returns EquatorialCoordinates

      equatorialFromEcliptic(113.21563, 6.68417, 23.4392911);
      // ≈ { rightAscension: 116.32894, declination: 28.02618 } (Meeus ex. 13.a)