Each eclipse has links to diagrams, maps and saros tables. The first is the period between the beginning and end of the partial phases, while the second value (in bold is the duration of the total phase.Įclipse Visibility is the portion of Earth's surface where some portion of the eclipse can be seen.Įvery link in the following table displays a pageĬontaining 10 years of lunar eclipses. Eclipse Duration is the duration of the partial phase of a partial eclipse.įor total eclipses two values are given. The fraction of the Moon's diameter obscured by Earth's umbral shadow at the instant of greatest eclipse.įor total eclipses, the umbral magnitude is always greater than or equal to 1.įor partial eclipses, the umbral magnitude is always greater than 0 and less than 1.įor penumbral eclipses, the umbral magnitude is always negative (i.e., less than 0). The distance between the axis of Earth's umbral shadow and the center of the Moon's disk reaches a minimum. Geographic abbreviations (used above): n = north, s = south, e = east, w = west, c = central The Key to Lunar Eclipse Decade Table contains a more detailed description of each item in the table.įor more data on lunar eclipses during this period, seeĪmericas, n Europe, e Asia, Australia, PacificĮ Americas, Europe, Africa, Asia, Australia
#2021 lunar eclipse pdf#
The equidistant cylindrical projection map below illustrates the geographpic region of visibility for each phase of the eclipse.Įach figure is stored as a PDF file of about 110 kilobytes.Īll eclipses belonging to a particular Saros Series are listed in a table linked through the Saros number. The top diagram shows the Moon's trajectory with respect to Earth's penumbral and umbral shadows. Two fields in the summary table provide links to graphics and additional information for each eclipse.Ī figure consisting of a diagram and map for each eclipse may be seen by clicking on the Calendar Date. The second value (in bold) is the duration the total phase.įinally, the Geographic Region of Eclipse Visibility provides a brief description of the regions where each eclipse will be seen. The first is the interval between the beginning and end of the partial phases.
If the eclipse is total then two durations are listed. The Eclipse Duration gives the length of the partial eclipse. The Umbral Magnitude (column 5) gives the fraction of the Moon's diameter immersed in Earth's umbral shadow at the instant of greatest eclipse. The third column lists the Eclipse Type which is either Total, Partial, or Penumbral.Įclipses recur over the Saros cycle, a period of approximately 18 years 11 days.Įach eclipse belongs to the Saros Series shown in the 4th column. The second column TD of Greatest Eclipse is the Terrestrial Dynamical Time of greatest eclipse. The first column gives the Calendar Date of the instant of greatest eclipse. A concise summary of all lunar eclipses from
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