In this astronomical chart Gibbes provides a diagram, its calculations and results (phases of the eclipse: beginning, middle, end and duration), and the mathematical calculations for an annular partial eclipse of the sun in relation to the elements of the eclipse. Those elements are time, hourly motion, declination, hourly motion in declination and horizontal parallax.
In this astronomical chart Gibbes provides a diagram and the elements for constructing the diagram. Those elements are hourly motion, declination, hourly motion in declination, horizontal parallax and semidiameter. Gibbes also provides the result times of the eclipse including the beginning, total, opposition, middle, end of total, general and duration of eclipse. The diagram shows the central path for the moon during the eclipse.
