Penumbral Lunar Eclipse of 1908 Jun 14

Fred Espenak

Introduction


The Penumbral Lunar Eclipse of 1908 Jun 14 is visible from the following geographic regions:

  • eastern Africa, eastern Asia, Australia, western North America, South S 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 1908 Jun 14 at 14:06:32 TD (14:06:24 UT1). This is 2.3 days before the Moon reaches perigee. During the eclipse, the Moon is in the constellation Ophiuchus. The synodic month in which the eclipse takes place has a Brown Lunation Number of -180.

The eclipse belongs to Saros 109 and is number 66 of 71 eclipses in 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.

The penumbral lunar eclipse of 1908 Jun 14 is followed two weeks later by a annular solar eclipse on 1908 Jun 28.

Another lunar eclipse occurs one synodic month after the 1908 Jun 14 eclipse. It is the penumbral lunar eclipse of 1908 Jul 13.

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 8.3 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 1908 Jun 14 .


Eclipse Data: Penumbral Lunar Eclipse of 1908 Jun 14

Eclipse Characteristics
Parameter Value
Penumbral Magnitude 0.81348
Umbral Magnitude-0.15412
Gamma 1.10536
Epsilon 1.1000°
Opposition Times
Event Calendar Date & Time Julian Date
Greatest Eclipse 1908 Jun 14 at 14:06:32.1 TD (14:06:23.9 UT1) 2418107.087776
Ecliptic Opposition 1908 Jun 14 at 13:55:12.1 TD (13:55:03.8 UT1) 2418107.079906
Equatorial Opposition 1908 Jun 14 at 13:48:58.5 TD (13:48:50.2 UT1) 2418107.075581
Geocentric Coordinates of Sun and Moon
1908 Jun 14 at 14:06:32.1 TD (14:06:23.9 UT1)
Coordinate Sun Moon
Right Ascension05h29m49.7s17h30m31.9s
Declination+23°16'10.8"-22°10'53.8"
Semi-Diameter 15'44.7" 16'16.3"
Eq. Hor. Parallax 08.7" 0°59'43.0"
Geocentric Libration of Moon
Angle Value
l -3.9°
b -1.4°
c 1.4°
Earth's Shadows
Parameter Value
Penumbral Radius 1.2700°
Umbral Radius 0.7452°
Prediction Paramaters
Paramater Value
Ephemerides JPL DE406
ΔT 8.3 s
Shadow Rule Danjon
Shadow Enlargement 1.010
Saros Series 109 (66/71)

Explanation of Lunar Eclipse Data Tables

Eclipse Contacts: Penumbral Lunar Eclipse of 1908 Jun 14

Lunar Eclipse Contacts
Eclipse Event Contact Time
TD
Time
UT1
Zenith Latitude Zenith Longitude Position Angle Axis Distance
Penumbral BeginsP112:11:34.212:11:26.022°00.9'S176°09.0'E 324.1° 1.5403°
Greatest EclipseGreatest14:06:32.114:06:23.922°10.9'S148°33.8'E 8.5° 1.1000°
Penumbral EndsP416:01:36.016:01:27.822°20.4'S120°57.4'E 53.0° 1.5421°
Eclipse Durations
Eclipse Phase Duration
Penumbral (P4 - P1)03h50m01.8s

Explanation of Lunar Eclipse Contacts Table

Polynomial Besselian Elements: Penumbral Lunar Eclipse of 1908 Jun 14

Polynomial Besselian Elements
1908 Jun 14 at 14:00:00.0 TD (=t0)
n x y d f1 f2 f3
0 0.10229 1.09697 0.4061 1.27000 0.74520 0.27118
1 0.55671 -0.08340 0.0000 0.00037 0.00037 0.00010
2 0.00024 0.00007 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 = 14.000

Explanation of Besselian Elements

Links for the Penumbral Lunar Eclipse of 1908 Jun 14

Links to Additional Lunar Eclipse Information

Eclipse Predictions

Predictions for the Penumbral Lunar Eclipse of 1908 Jun 14 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 8.3 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.