Solar Eclipse Prime Page

Partial Solar Eclipse of 2025 Mar 29

Fred Espenak

Introduction


The Partial Solar Eclipse of 2025 Mar 29 is visible from the following geographic regions:

  • Partial Eclipse: northwest Africa, Europe, north Russia

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 Mar 29 at 10:48:36 TD (10:47:24 UT1). This is 0.8 days before the Moon reaches perigee. During the eclipse, the Sun is in the constellation Pisces. The synodic month in which the eclipse takes place has a Brown Lunation Number of 1265.

The eclipse belongs to Saros 149 and is number 21 of 71 eclipses in the series. All eclipses in this series occur at the Moon’s ascending node. The Moon moves southward with respect to the node with each succeeding eclipse in the series and gamma decreases.

This is a very deep partial eclipse. It has an eclipse magnitude of 0.9376, while Gamma has a value of 1.0405.

The partial solar eclipse of 2025 Mar 29 is preceded two weeks earlier by a total lunar eclipse on 2025 Mar 14.

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 71.7 seconds for this eclipse.

The following links provide maps and data for the eclipse.

The tables below contain detailed predictions and additional information on the Partial Solar Eclipse of 2025 Mar 29 .


Eclipse Data: Partial Solar Eclipse of 2025 Mar 29

Eclipse Characteristics
Parameter Value
Eclipse Magnitude 0.93760
Eclipse Obscuration 0.93057
Gamma 1.04053
Conjunction Times
Event Calendar Date & Time Julian Date
Greatest Eclipse 2025 Mar 29 at 10:48:36.1 TD (10:47:24.4 UT1) 2460763.949588
Ecliptic Conjunction 2025 Mar 29 at 10:58:59.4 TD (10:57:47.7 UT1) 2460763.956802
Equatorial Conjunction 2025 Mar 29 at 11:47:27.0 TD (11:46:15.3 UT1) 2460763.990455
Geocentric Coordinates of Sun and Moon
2025 Mar 29 at 10:48:36.1 TD (10:47:24.4 UT1)
Coordinate Sun Moon
Right Ascension00h33m03.1s00h31m00.8s
Declination+03°33'55.0"+04°29'34.1"
Semi-Diameter 16'01.1" 16'39.4"
Eq. Hor. Parallax 08.8" 1°01'07.8"
Geocentric Libration of Moon
Angle Value
l -2.0°
b -1.3°
c -21.7°
Prediction Paramaters
Paramater Value
Ephemerides JPL DE406
ΔT 71.7 s
k (penumbra) 0.2725076
k (umbra) 0.2722810
Saros Series 149 (21/71)

Explanation of Solar Eclipse Data Tables

Penumbral Shadow Contacts and Extremes: Partial Solar Eclipse of 2025 Mar 29

Contacts of Penumbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactP108:51:52.508:50:40.814°00.2'N042°22.4'W
Last External ContactP412:44:54.012:43:42.371°13.3'N090°52.7'E
Extreme Northern and Southern Path Limits of Penumbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N109:17:57.009:16:45.301°37.2'N048°07.9'W
South Extreme Path Limit 1S112:18:53.612:17:41.959°04.8'N092°44.8'E

Explanation of Penumbral Shadow Contacts and Extremes Tables

Polynomial Besselian Elements: Partial Solar Eclipse of 2025 Mar 29

Polynomial Besselian Elements
2025 Mar 29 at 11:00:00.0 TD (=t0)
n x y d l1 l2 μ
0 -0.40288 0.96569 3.5660 0.53578 -0.01032 343.8317
1 0.50941 0.27883 0.0155 -0.00005 -0.00005 15.0044
2 0.00004 -0.00007 -0.0000 -0.00001 -0.00001 -0.0000
3 -0.00001 -0.00000 - - - -
Tan ƒ1 0.0046823
Tan ƒ2 0.0046590

At time t1 (decimal hours), each besselian element is evaluated by:

x = x0 + x1*t + x2*t2 + x3*t3 (or x = Σ [xn*tn]; n = 0 to 3)

where: t = t1 - t0 (decimal hours) and t0 = 11.000

Explanation of Polynomial Besselian Elements

Links for the Partial Solar Eclipse of 2025 Mar 29

Links to Additional Solar Eclipse Information

Eclipse Predictions

Predictions for the Partial Solar Eclipse of 2025 Mar 29 were generated using the JPL DE406 solar and lunar ephemerides. The lunar coordinates were calculated with respect to the Moon's Center of Mass. The 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 71.7 seconds for this eclipse.

Acknowledgments

Some of the content on this website is based on the book Thousand Year Canon of Solar Eclipses 1501 to 2500. All eclipse calculations are by Fred Espenak, and he assumes full responsibility for their accuracy.

Permission is granted to reproduce eclipse data when accompanied by a link to this page and an acknowledgment:

"Eclipse Predictions by Fred Espenak, www.EclipseWise.com"

The use of diagrams and maps is permitted provided that they are NOT altered (except for re-sizing) and the embedded credit line is NOT removed or covered.