Solar Eclipse Prime Page

Partial Solar Eclipse of 2069 May 20

Fred Espenak

Introduction


The Partial Solar Eclipse of 2069 May 20 is visible from the following geographic regions:

  • Partial Eclipse: South America, 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 2069 May 20 at 17:53:18 TD (17:51:39 UT1). This is 1.2 days after the Moon reaches perigee. During the eclipse, the Sun is in the constellation Taurus. The synodic month in which the eclipse takes place has a Brown Lunation Number of 1811.

The eclipse belongs to Saros 158 and is number 1 of 70 eclipses in the series. Thus, the 2069 May 20 event is the very first eclipse of the series . All eclipses in this series occur at the Moon’s descending node. The Moon moves northward with respect to the node with each succeeding eclipse in the series and gamma increases.

This is a very deep partial eclipse. It has an eclipse magnitude of 0.0879, while Gamma has a value of -1.4852.

The partial solar eclipse of 2069 May 20 is preceded two weeks earlier by a total lunar eclipse on 2069 May 06.

Another solar eclipse occurs one synodic month before the 2069 May 20 eclipse. It is the partial solar eclipse of 2069 Apr 21.

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 99.0 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 2069 May 20 .


Eclipse Data: Partial Solar Eclipse of 2069 May 20

Eclipse Characteristics
Parameter Value
Eclipse Magnitude 0.08791
Eclipse Obscuration 0.03123
Gamma-1.48519
Conjunction Times
Event Calendar Date & Time Julian Date
Greatest Eclipse 2069 May 20 at 17:53:17.8 TD (17:51:38.8 UT1) 2476887.244199
Ecliptic Conjunction 2069 May 20 at 18:07:59.8 TD (18:06:20.8 UT1) 2476887.254408
Equatorial Conjunction 2069 May 20 at 17:35:14.2 TD (17:33:35.2 UT1) 2476887.231658
Geocentric Coordinates of Sun and Moon
2069 May 20 at 17:53:17.8 TD (17:51:38.8 UT1)
Coordinate Sun Moon
Right Ascension03h52m35.6s03h53m19.8s
Declination+20°12'26.5"+18°43'03.9"
Semi-Diameter 15'48.3" 16'32.8"
Eq. Hor. Parallax 08.7" 1°00'43.6"
Geocentric Libration of Moon
Angle Value
l 2.3°
b 2.0°
c -13.5°
Prediction Paramaters
Paramater Value
Ephemerides JPL DE406
ΔT 99.0 s
k (penumbra) 0.2725076
k (umbra) 0.2722810
Saros Series 158 ( 1/70)

Explanation of Solar Eclipse Data Tables

Penumbral Shadow Contacts and Extremes: Partial Solar Eclipse of 2069 May 20

Contacts of Penumbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactP117:14:39.117:13:00.168°33.3'S099°31.7'W
Last External ContactP418:32:06.918:30:27.961°24.0'S050°56.1'W
Extreme Northern and Southern Path Limits of Penumbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N117:25:29.417:23:50.467°18.0'S110°09.7'W
South Extreme Path Limit 1S118:21:17.318:19:38.359°03.9'S043°38.9'W

Explanation of Penumbral Shadow Contacts and Extremes Tables

Polynomial Besselian Elements: Partial Solar Eclipse of 2069 May 20

Polynomial Besselian Elements
2069 May 20 at 18:00:00.0 TD (=t0)
n x y d l1 l2 μ
0 0.23658 -1.46764 20.2118 0.53399 -0.01211 90.8330
1 0.57324 0.06703 0.0083 0.00006 0.00006 15.0007
2 -0.00001 -0.00006 -0.0000 -0.00001 -0.00001 -0.0000
3 -0.00001 -0.00000 - - - -
Tan ƒ1 0.0046201
Tan ƒ2 0.0045971

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 = 18.000

Explanation of Polynomial Besselian Elements

Links for the Partial Solar Eclipse of 2069 May 20

Links to Additional Solar Eclipse Information

Eclipse Predictions

Predictions for the Partial Solar Eclipse of 2069 May 20 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 99.0 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.