The information in the bottom three lines is. For second contact start by reading the angle "P" value and then look at the corresponding correction on the diagram. When it isn’t, then you can use a lunar limb correction diagram, available for each eclipse, that will indicate the correction is seconds. When it is, then the correction (in seconds) it has applied is given. LC - The calculator is able to determine a correction factor to the time of the start and end of the eclipse due to the fact that the Moon’s limb is not smooth.This differs from the definition of V in the "Annular and Total Solar Eclipses of 2003" (NASA TP 2002-211618) bulletin, where V is measured counter-clockwise in degrees, V - The "o’clock" position on the Sun’s face of the contact point with the Moon (eg V=12.0 means that the contact point is in the "12 o’clock" position - ie the top of the Sun’s disk).P - The angle between the north point on the Sun’s disk and the contact point with the Moon,.Azi - The azimuth of the Sun (0° = due north, 90° = due east, etc.),.Alt - The altitude of the sun, in degrees, above the horizon,.The local date and time of the event (if the event occurs while the Sun is below the horizon, an asterisk (*) will appear after the hour),.The information given in the first five lines is. The times and local circumstances of the eclipse from your location are given in the Predicted Eclipse Local Circumstances section.DST for Daylight Savings Time is a number (0 for Regular Time, else 1).Time Zone is a text string in the following format SHHMM,.Lng for Longitude is a number in decimal notation and is positive if East of Greenwich,.Latitude is a number in decimal notation and is positive in the Northern hemisphere,.Eclipse is a text string specifying the eclipse’s date in the following format YYYYMMDD,.The parameters can be specified in any order or can be omitted. To start with other default geographic or eclipse parameters you can append a query string to this web page URL. A diagram showing the position of the Sun and Moon at maximum eclipse will be displayed, and updated in realtime while hovering over the various contact events.
The predicted eclipse circumstances will appear in the table below that button. Then click on the "Calculate Eclipse Circumstances" button. To find the local circumstances of an eclipse, first select the eclipse and then enter your location and time zone information in the Geographic Coordinates section.