Total Lunar Eclipse of 1906 Feb 09

Fred Espenak

Introduction


The Total Lunar Eclipse of 1906 Feb 09 is visible from the following geographic regions:

  • eastern Asia, eastern Australia, Americas, Europe, western Africa

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 1906 Feb 09 at 07:46:58 TD (07:46:52 UT1). This is 4.6 days before the Moon reaches perigee. During the eclipse, the Moon is in the constellation Leo. The synodic month in which the eclipse takes place has a Brown Lunation Number of -209.

The eclipse belongs to Saros 122 and is number 50 of 74 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 total eclipse is central meaning the Moon’s disk actually passes through the axis of Earth’s umbral shadow. It has an umbral eclipse magnitude of 1.6254, and Gamma has a value of -0.1199. Because they are so deep, such eclipses typically have the longest total phases. In this case, the duration of totality lasts 97.8 minutes.

The total lunar eclipse of 1906 Feb 09 is followed two weeks later by a partial solar eclipse on 1906 Feb 23.

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 5.2 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 Total Lunar Eclipse of 1906 Feb 09 .


Eclipse Data: Total Lunar Eclipse of 1906 Feb 09

Eclipse Characteristics
Parameter Value
Penumbral Magnitude 2.65067
Umbral Magnitude 1.62541
Gamma-0.11992
Epsilon 0.1160°
Opposition Times
Event Calendar Date & Time Julian Date
Greatest Eclipse 1906 Feb 09 at 07:46:57.5 TD (07:46:52.3 UT1) 2417250.824216
Ecliptic Opposition 1906 Feb 09 at 07:45:38.5 TD (07:45:33.3 UT1) 2417250.823302
Equatorial Opposition 1906 Feb 09 at 07:49:54.1 TD (07:49:48.9 UT1) 2417250.826261
Geocentric Coordinates of Sun and Moon
1906 Feb 09 at 07:46:57.5 TD (07:46:52.3 UT1)
Coordinate Sun Moon
Right Ascension21h28m21.1s09h28m14.8s
Declination-14°55'26.0"+14°48'38.6"
Semi-Diameter 16'12.5" 15'48.5"
Eq. Hor. Parallax 08.9" 0°58'01.2"
Geocentric Libration of Moon
Angle Value
l -5.0°
b 0.2°
c 19.8°
Earth's Shadows
Parameter Value
Penumbral Radius 1.2493°
Umbral Radius 0.7090°
Prediction Paramaters
Paramater Value
Ephemerides JPL DE406
ΔT 5.2 s
Shadow Rule Danjon
Shadow Enlargement 1.010
Saros Series 122 (50/74)

Explanation of Lunar Eclipse Data Tables

Eclipse Contacts: Total Lunar Eclipse of 1906 Feb 09

Lunar Eclipse Contacts
Eclipse Event Contact Time
TD
Time
UT1
Zenith Latitude Zenith Longitude Position Angle Axis Distance
Penumbral BeginsP104:55:28.204:55:23.015°10.3'N071°48.4'W 278.2° 1.5112°
Partial BeginsU105:57:14.505:57:09.315°02.6'N086°42.0'W 275.7° 0.9715°
Total BeginsU206:58:05.006:57:59.814°54.9'N101°22.1'W 267.5° 0.4453°
Greatest EclipseGreatest07:46:57.507:46:52.314°48.6'N113°09.2'W 192.6° 0.1160°
Total EndsU308:35:51.408:35:46.214°42.3'N124°56.6'W 117.7° 0.4458°
Partial EndsU409:36:42.809:36:37.614°34.4'N139°37.0'W 109.5° 0.9735°
Penumbral EndsP410:38:20.310:38:15.114°26.3'N154°28.5'W 107.0° 1.5143°
Eclipse Durations
Eclipse Phase Duration
Penumbral (P4 - P1)05h42m52.0s
Partial (U4 - U1)03h39m28.3s
Total (U3 - U2)01h37m46.4s

Explanation of Lunar Eclipse Contacts Table

Polynomial Besselian Elements: Total Lunar Eclipse of 1906 Feb 09

Polynomial Besselian Elements
1906 Feb 09 at 08:00:00.0 TD (=t0)
n x y d f1 f2 f3
0 0.08672 -0.13819 -0.2604 1.24937 0.70909 0.26351
1 0.51533 -0.11516 0.0002 0.00042 0.00042 0.00011
2 0.00021 -0.00014 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 = 8.000

Explanation of Besselian Elements

Links for the Total Lunar Eclipse of 1906 Feb 09

Links to Additional Lunar Eclipse Information

Eclipse Predictions

Predictions for the Total Lunar Eclipse of 1906 Feb 09 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 5.2 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.