Penumbral Lunar Eclipse of 1944 Dec 29

Fred Espenak

Introduction


The Penumbral Lunar Eclipse of 1944 Dec 29 is visible from the following geographic regions:

  • Europe, eastern Africa, Asia, Australia, 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 1944 Dec 29 at 14:49:35 TD (14:49:08 UT1). This is 6.1 days after the Moon reaches perigee. During the eclipse, the Moon is in the constellation Gemini. The synodic month in which the eclipse takes place has a Brown Lunation Number of 272.

The eclipse belongs to Saros 114 and is number 55 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 very deep penumbral eclipse is a rare total penumbral eclipse in which the entire disk of the Moon is immersed in the penumbral shadow. It has a penumbral eclipse magnitude of 1.0220 and a penumbral eclipse duration of 266.7 minutes. Gamma has a value of -1.0115.

The penumbral lunar eclipse of 1944 Dec 29 is followed two weeks later by a annular solar eclipse on 1945 Jan 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., TD = UT1 + ΔT). ΔT has a value of 26.9 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 Penumbral Lunar Eclipse of 1944 Dec 29 .


Eclipse Data: Penumbral Lunar Eclipse of 1944 Dec 29

Eclipse Characteristics
Parameter Value
Penumbral Magnitude 1.02198
Umbral Magnitude-0.01757
Gamma-1.01151
Epsilon 0.9680°
Opposition Times
Event Calendar Date & Time Julian Date
Greatest Eclipse 1944 Dec 29 at 14:49:34.7 TD (14:49:07.8 UT1) 2431454.117451
Ecliptic Opposition 1944 Dec 29 at 14:38:31.4 TD (14:38:04.6 UT1) 2431454.109775
Equatorial Opposition 1944 Dec 29 at 14:45:09.8 TD (14:44:42.9 UT1) 2431454.114386
Geocentric Coordinates of Sun and Moon
1944 Dec 29 at 14:49:34.7 TD (14:49:07.8 UT1)
Coordinate Sun Moon
Right Ascension18h33m56.1s06h34m05.9s
Declination-23°12'58.6"+22°14'56.3"
Semi-Diameter 16'15.9" 15'38.8"
Eq. Hor. Parallax 08.9" 0°57'25.5"
Geocentric Libration of Moon
Angle Value
l 5.0°
b 1.2°
c 4.9°
Earth's Shadows
Parameter Value
Penumbral Radius 1.2402°
Umbral Radius 0.6980°
Prediction Paramaters
Paramater Value
Ephemerides JPL DE406
ΔT 26.9 s
Shadow Rule Danjon
Shadow Enlargement 1.010
Saros Series 114 (55/71)

Explanation of Lunar Eclipse Data Tables

Eclipse Contacts: Penumbral Lunar Eclipse of 1944 Dec 29

Lunar Eclipse Contacts
Eclipse Event Contact Time
TD
Time
UT1
Zenith Latitude Zenith Longitude Position Angle Axis Distance
Penumbral BeginsP112:36:10.212:35:43.322°12.3'N170°24.5'E 227.6° 1.5022°
Greatest EclipseGreatest14:49:34.714:49:07.822°14.9'N138°18.4'E 177.8° 0.9680°
Penumbral EndsP417:02:54.317:02:27.422°17.0'N106°13.4'E 128.0° 1.4998°
Eclipse Durations
Eclipse Phase Duration
Penumbral (P4 - P1)04h26m44.1s

Explanation of Lunar Eclipse Contacts Table

Polynomial Besselian Elements: Penumbral Lunar Eclipse of 1944 Dec 29

Polynomial Besselian Elements
1944 Dec 29 at 15:00:00.0 TD (=t0)
n x y d f1 f2 f3
0 0.12747 -0.96373 -0.4052 1.24016 0.69797 0.26076
1 0.51544 0.02017 0.0000 -0.00041 -0.00041 -0.00011
2 -0.00024 -0.00012 0.0000 -0.00000 -0.00000 -0.00000
3 -0.00001 -0.00000 - - - -

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 = 15.000

Explanation of Besselian Elements

Links for the Penumbral Lunar Eclipse of 1944 Dec 29

Links to Additional Lunar Eclipse Information

Eclipse Predictions

Predictions for the Penumbral Lunar Eclipse of 1944 Dec 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 26.9 seconds for this eclipse.

Acknowledgments

Some of the content on this web site is based on the book Thousand Year Canon of Lunar 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.