Partial Lunar Eclipse of 1997 Mar 24

Fred Espenak

Introduction


The Partial Lunar Eclipse of 1997 Mar 24 is visible from the following geographic regions:

  • central Pacific, Americas, Europe, 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 1997 Mar 24 at 04:40:28 TD (04:39:26 UT1). This is 3.2 days after the Moon reaches apogee. During the eclipse, the Moon is in the constellation Virgo. The synodic month in which the eclipse takes place has a Brown Lunation Number of 918.

The eclipse belongs to Saros 132 and is number 29 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 is a very deep partial eclipse. It has an umbral eclipse magnitude of 0.9195 and a partial eclipse duration of 203.1 minutes. Gamma has a value of 0.4899.

The partial lunar eclipse of 1997 Mar 24 is preceded two weeks earlier by a total solar eclipse on 1997 Mar 09.

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 62.4 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 Lunar Eclipse of 1997 Mar 24 .


Eclipse Data: Partial Lunar Eclipse of 1997 Mar 24

Eclipse Characteristics
Parameter Value
Penumbral Magnitude 1.99936
Umbral Magnitude 0.91953
Gamma 0.48990
Epsilon 0.4451°
Opposition Times
Event Calendar Date & Time Julian Date
Greatest Eclipse 1997 Mar 24 at 04:40:28.1 TD (04:39:25.6 UT1) 2450531.694047
Ecliptic Opposition 1997 Mar 24 at 04:46:16.8 TD (04:45:14.3 UT1) 2450531.698083
Equatorial Opposition 1997 Mar 24 at 04:22:05.8 TD (04:21:03.3 UT1) 2450531.681288
Geocentric Coordinates of Sun and Moon
1997 Mar 24 at 04:40:28.1 TD (04:39:25.6 UT1)
Coordinate Sun Moon
Right Ascension00h13m09.7s12h13m42.1s
Declination+01°25'31.5"-01°00'04.5"
Semi-Diameter 16'02.5" 14'51.3"
Eq. Hor. Parallax 08.8" 0°54'31.3"
Geocentric Libration of Moon
Angle Value
l -3.1°
b -0.5°
c 24.9°
Earth's Shadows
Parameter Value
Penumbral Radius 1.1876°
Umbral Radius 0.6529°
Prediction Paramaters
Paramater Value
Ephemerides JPL DE406
ΔT 62.4 s
Shadow Rule Danjon
Shadow Enlargement 1.010
Saros Series 132 (29/71)

Explanation of Lunar Eclipse Data Tables

Eclipse Contacts: Partial Lunar Eclipse of 1997 Mar 24

Lunar Eclipse Contacts
Eclipse Event Contact Time
TD
Time
UT1
Zenith Latitude Zenith Longitude Position Angle Axis Distance
Penumbral BeginsP101:43:26.501:42:24.000°32.4'S025°09.8'W 305.7° 1.4344°
Partial BeginsU102:58:57.202:57:54.800°44.2'S043°29.5'W 317.3° 0.9000°
Greatest EclipseGreatest04:40:28.104:39:25.601°00.1'S068°07.8'W 17.6° 0.4451°
Partial EndsU406:22:01.906:20:59.401°16.0'S092°46.8'W 78.0° 0.9009°
Penumbral EndsP407:37:26.907:36:24.401°27.8'S111°05.0'W 89.6° 1.4359°
Eclipse Durations
Eclipse Phase Duration
Penumbral (P4 - P1)05h54m00.4s
Partial (U4 - U1)03h23m04.6s

Explanation of Lunar Eclipse Contacts Table

Polynomial Besselian Elements: Partial Lunar Eclipse of 1997 Mar 24

Polynomial Besselian Elements
1997 Mar 24 at 05:00:00.0 TD (=t0)
n x y d f1 f2 f3
0 0.27846 0.37850 0.0250 1.18765 0.65293 0.24761
1 0.44085 -0.14028 0.0003 0.00020 0.00021 0.00005
2 0.00010 -0.00004 -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 = 5.000

Explanation of Besselian Elements

Links for the Partial Lunar Eclipse of 1997 Mar 24

Links to Additional Lunar Eclipse Information

Eclipse Predictions

Predictions for the Partial Lunar Eclipse of 1997 Mar 24 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 62.4 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.