Total Lunar Eclipse of 2018 Jan 31
The Total Lunar Eclipse of 2018 Jan 31 is visible from the following geographic regions:
- Asia, Australia, Pacific, western North America
The diagram to the right depicts the Moon's path with respect to Earth's umbral and penumbral shadows. Below it is a map showing the geographic regions of eclipse visibility. Click on the figure to enlarge it. For an explanation of the features appearing in the figure, see Key to Lunar Eclipse Figures.
The instant of greatest eclipse takes place on 2018 Jan 31 at 13:31:00 TD (13:29:51 UT1). This is 1.2 days after the Moon reaches perigee. During the eclipse, the Moon is in the constellation Cancer. The synodic month in which the eclipse takes place has a Brown Lunation Number of 1176.
The eclipse belongs to Saros 124 and is number 49 of 73 eclipses in the series. All eclipses in this series occur at the Moons ascending node. The Moon moves southward with respect to the node with each succeeding eclipse in the series and gamma decreases.
The total lunar eclipse of 2018 Jan 31 is followed two weeks later by a partial solar eclipse on 2018 Feb 15.
These eclipses all take place during a single eclipse season.
The eclipse predictions are given in both Terrestrial Dynamical Time (TD) and Universal Time (UT1). The parameter ΔT is used to convert between these two times (i.e., TD = UT1 + ΔT). ΔT has a value of 68.7 seconds for this eclipse.
The following links provide maps and data for the eclipse.
- Eclipse Figure - eclipse geometry diagram and map of eclipse visibility
- Saros 124 Table - data for all eclipses in the Saros series
The tables below contain detailed predictions and additional information on the Total Lunar Eclipse of 2018 Jan 31 .