Total Lunar Eclipse of 2087 May 17

Fred Espenak

Key to Lunar Eclipse Figure (below)

Introduction


The Total Lunar Eclipse of 2087 May 17 is visible from the following geographic regions:

  • eastern Europe, eastern Africa, Asia, Australia

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 2087 May 17 at 15:55:20 TD (15:53:26 UT1). This is 1.9 days after the Moon reaches apogee. During the eclipse, the Moon is in the constellation Libra. The synodic month in which the eclipse takes place has a Brown Lunation Number of 2033.

The eclipse belongs to Saros 132 and is number 34 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 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 1.4568, and Gamma has a value of 0.1999. Because they are so deep, such eclipses typically have the longest total phases. In this case, the duration of totality lasts 95.9 minutes.

The total lunar eclipse of 2087 May 17 is preceded two weeks earlier by a partial solar eclipse on 2087 May 02, and it is followed two weeks later by a partial solar eclipse on 2087 Jun 01.

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 114.5 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 2087 May 17 .


Eclipse Data: Total Lunar Eclipse of 2087 May 17

Eclipse Characteristics
Parameter Value
Penumbral Magnitude 2.52894
Umbral Magnitude 1.45675
Gamma 0.19987
Epsilon 0.1803°
Opposition Times
Event Calendar Date & Time Julian Date
Greatest Eclipse 2087 May 17 at 15:55:20.2 TD (15:53:25.7 UT1) 2483458.162103
Ecliptic Opposition 2087 May 17 at 15:57:43.6 TD (15:55:49.0 UT1) 2483458.163762
Equatorial Opposition 2087 May 17 at 15:52:12.6 TD (15:50:18.0 UT1) 2483458.159931
Geocentric Coordinates of Sun and Moon
2087 May 17 at 15:55:20.2 TD (15:53:25.7 UT1)
Coordinate Sun Moon
Right Ascension03h38m52.3s15h38m58.3s
Declination+19°28'43.2"-19°17'59.5"
Semi-Diameter 15'49.1" 14'45.2"
Eq. Hor. Parallax 08.7" 0°54'08.7"
Geocentric Libration of Moon
Angle Value
l -1.9°
b -0.2°
c 14.8°
Earth's Shadows
Parameter Value
Penumbral Radius 1.1808°
Umbral Radius 0.6535°
Prediction Paramaters
Paramater Value
Ephemerides JPL DE430
ΔT 114.5 s
Shadow Rule Herald/Sinnott
Shadow Enlargement 1.000
Saros Series 132 (34/71)

Explanation of Lunar Eclipse Data Tables

Eclipse Contacts: Total Lunar Eclipse of 2087 May 17

Lunar Eclipse Contacts
Eclipse Event Contact Time
TD
Time
UT1
Zenith Latitude Zenith Longitude Position Angle Axis Distance
Penumbral BeginsP112:49:22.412:47:27.819°04.8'S165°48.4'E 284.8° 1.4260°
Partial BeginsU113:59:36.513:57:41.919°09.9'S148°48.5'E 289.1° 0.8988°
Total BeginsU215:07:26.215:05:31.619°14.7'S132°23.6'E 303.9° 0.4067°
Greatest EclipseGreatest15:55:20.215:53:25.719°18.0'S120°48.0'E 7.5° 0.1803°
Total EndsU316:43:19.816:41:25.319°21.3'S109°11.2'E 71.2° 0.4074°
Partial EndsU417:51:07.217:49:12.619°25.8'S092°47.0'E 85.9° 0.8997°
Penumbral EndsP419:01:17.018:59:22.519°30.4'S075°48.3'E 90.2° 1.4271°
Eclipse Durations
Eclipse Phase Duration
Penumbral (P4 - P1)06h11m54.7s
Partial (U4 - U1)03h51m30.7s
Total (U3 - U2)01h35m53.6s

Explanation of Lunar Eclipse Contacts Table

Polynomial Besselian Elements: Total Lunar Eclipse of 2087 May 17

Polynomial Besselian Elements
2087 May 17 at 16:00:00.0 TD (=t0)
n x y d f1 f2 f3
0 0.05878 0.17415 0.3400 1.18079 0.65351 0.24589
1 0.45269 -0.05973 0.0002 0.00011 0.00012 0.00003
2 0.00008 0.00009 -0.0000 0.00000 0.00000 0.00000
3 -0.00000 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 = 16.000

Explanation of Besselian Elements

Eclipse Publications

jpeg jpeg
jpeg jpeg
jpeg

For more visit: AstroPixels Publishing


Links for the Total Lunar Eclipse of 2087 May 17

Links to Additional Lunar Eclipse Information

Decade Tables of Lunar Eclipses:
| 1901 - 1910 | 1911 - 1919 | 1921 - 1930 | 1931 - 1940 | 1941 - 1950 |
| 1951 - 1960 | 1961 - 1970 | 1971 - 1980 | 1981 - 1990 | 1991 - 2000 |
| 2001 - 2010 | 2011 - 2020 | 2021 - 2030 | 2031 - 2040 | 2041 - 2050 |
| 2051 - 2060 | 2061 - 2070 | 2071 - 2080 | 2081 - 2090 | 2091 - 2100 |

Lunar Eclipse Publications

Eclipse Predictions

Predictions for the Total Lunar Eclipse of 2087 May 17 were generated using the JPL DE430 solar and lunar ephemerides. The lunar coordinates were calculated with respect to the Moon's Center of Mass.

The Earth's umbral and penumbral shadows were calculated using the Danjon methodusing a mean mid-latitude ellipticity to compensate for the opacity of the terrestrial atmosphere.

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 114.5 seconds for this eclipse.

Acknowledgments

Some of the content on this web site is based on the book 21st Century Canon of Lunar Eclipses. 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.