Siddhanta Parity API Documentation - v1.3.0
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    Ecliptic coordinates of a celestial body.

    The origin and date of the coordinate system may vary depending on the caller's usage. In general, ecliptic coordinates are measured with respect to the mean plane of the Earth's orbit around the Sun. Includes Cartesian coordinates (ex, ey, ez) measured in astronomical units (AU) and spherical coordinates (elon, elat) measured in degrees.

    Index

    Constructors

    Properties

    Constructors

    Properties

    elat: number

    The ecliptic latitude of the body in degrees. This is the angle north or south of the ecliptic plane. The value is in the range [-90, +90]. Positive values are north and negative values are south.

    elon: number

    The ecliptic longitude of the body in degrees. This is the angle measured counterclockwise around the ecliptic plane, as seen from above the Sun's north pole. This is the same direction that the Earth orbits around the Sun. The angle is measured starting at 0 from the equinox and increases up to 360 degrees.

    vec: Vector

    Ecliptic cartesian vector with components measured in astronomical units (AU). The x-axis is within the ecliptic plane and is oriented in the direction of the equinox. The y-axis is within the ecliptic plane and is oriented 90 degrees counterclockwise from the equinox, as seen from above the Sun's north pole. The z-axis is oriented perpendicular to the ecliptic plane, along the direction of the Sun's north pole.