Solar Eclipse Prime Page

Partial Solar Eclipse of 1942 Aug 12

Fred Espenak

Introduction


The Partial Solar Eclipse of 1942 Aug 12 is visible from the following geographic regions:

  • Partial Eclipse: 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 1942 Aug 12 at 02:45:12 TD (02:44:46 UT1). This is 4.6 days after the Moon reaches apogee. During the eclipse, the Sun is in the constellation Leo. The synodic month in which the eclipse takes place has a Brown Lunation Number of 243.

The eclipse belongs to Saros 115 and is number 72 of 72 eclipses in the series. Thus, the 1942 Aug 12 event is the last eclipse of 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 0.0562, while Gamma has a value of -1.5244.

The partial solar eclipse of 1942 Aug 12 is followed two weeks later by a total lunar eclipse on 1942 Aug 26.

Another solar eclipse occurs one synodic month after the 1942 Aug 12 eclipse. It is the partial solar eclipse of 1942 Sep 10.

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 25.7 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 1942 Aug 12 .


Eclipse Data: Partial Solar Eclipse of 1942 Aug 12

Eclipse Characteristics
Parameter Value
Eclipse Magnitude 0.05620
Eclipse Obscuration 0.01566
Gamma-1.52444
Conjunction Times
Event Calendar Date & Time Julian Date
Greatest Eclipse 1942 Aug 12 at 02:45:11.6 TD (02:44:45.9 UT1) 2430583.614420
Ecliptic Conjunction 1942 Aug 12 at 02:28:04.4 TD (02:27:38.7 UT1) 2430583.602531
Equatorial Conjunction 1942 Aug 12 at 03:24:16.4 TD (03:23:50.7 UT1) 2430583.641559
Geocentric Coordinates of Sun and Moon
1942 Aug 12 at 02:45:11.6 TD (02:44:45.9 UT1)
Coordinate Sun Moon
Right Ascension09h24m47.6s09h23m32.6s
Declination+15°12'09.3"+13°50'08.2"
Semi-Diameter 15'47.0" 15'03.2"
Eq. Hor. Parallax 08.7" 0°55'14.6"
Geocentric Libration of Moon
Angle Value
l -3.8°
b 1.9°
c 19.5°
Prediction Paramaters
Paramater Value
Ephemerides JPL DE406
ΔT 25.7 s
k (penumbra) 0.2725076
k (umbra) 0.2722810
Saros Series 115 (72/72)

Explanation of Solar Eclipse Data Tables

Penumbral Shadow Contacts and Extremes: Partial Solar Eclipse of 1942 Aug 12

Contacts of Penumbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactP102:08:33.602:08:07.961°43.4'S089°36.7'E
Last External ContactP403:21:27.703:21:02.174°46.6'S127°42.2'E
Extreme Northern and Southern Path Limits of Penumbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N102:18:27.802:18:02.159°17.7'S084°00.9'E
South Extreme Path Limit 1S103:11:31.003:11:05.374°40.7'S140°52.7'E

Explanation of Penumbral Shadow Contacts and Extremes Tables

Polynomial Besselian Elements: Partial Solar Eclipse of 1942 Aug 12

Polynomial Besselian Elements
1942 Aug 12 at 03:00:00.0 TD (=t0)
n x y d l1 l2 μ
0 -0.20510 -1.51601 15.2032 0.55959 0.01337 223.7267
1 0.50699 -0.11251 -0.0121 -0.00010 -0.00010 15.0029
2 0.00000 -0.00003 -0.0000 -0.00001 -0.00001 0.0000
3 -0.00001 0.00000 - - - -
Tan ƒ1 0.0046149
Tan ƒ2 0.0045919

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 = 3.000

Explanation of Polynomial Besselian Elements

Links for the Partial Solar Eclipse of 1942 Aug 12

Links to Additional Solar Eclipse Information

Eclipse Predictions

Predictions for the Partial Solar Eclipse of 1942 Aug 12 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 25.7 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.