Solar Eclipse Prime Page
Partial Solar Eclipse of 2025 Sep 21
The Partial Solar Eclipse of 2025 Sep 21 is visible from the following geographic regions:
- Partial Eclipse: south Pacific, New Zealand, Antarctica
The map to the right depicts the geographic regions of eclipse visibility. Click on the map to enlarge it. For an explanation of the features appearing in the map, see Key to Solar Eclipse Maps.
The instant of greatest eclipse takes place on 2025 Sep 21 at 19:43:04 TD (19:41:52 UT1). This is 4.6 days before the Moon reaches apogee. During the eclipse, the Sun is in the constellation Virgo. The synodic month in which the eclipse takes place has a Brown Lunation Number of 1271.
The eclipse belongs to Saros 154 and is number 7 of 71 eclipses in the series. All eclipses in this series occur at the Moons descending node. The Moon moves northward with respect to the node with each succeeding eclipse in the series and gamma increases.
The partial solar eclipse of 2025 Sep 21 is preceded two weeks earlier by a total lunar eclipse on 2025 Sep 07.
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., UT1 = TD - ΔT). ΔT has a value of 71.9 seconds for this eclipse.
The following links provide maps and data for the eclipse.
- Orthographic Map: Partial Solar Eclipse of 2025 Sep 21 - detailed map of eclipse visibility
- Animated Map: Partial Solar Eclipse of 2025 Sep 21 - animated map of the Moon's shadows across Earth
- Google Map: Partial Solar Eclipse of 2025 Sep 21 - interactive map of the eclipse path
- Circumstances Table: Partial Solar Eclipse of 2025 Sep 21 - eclipse times for hundreds of cities
- Saros 154 Table - data for all eclipses in the Saros series
The tables below contain detailed predictions and additional information on the Partial Solar Eclipse of 2025 Sep 21 .