Solar Eclipse Prime Page

Annular Solar Eclipse of 1984 May 30

Fred Espenak

Introduction


The Annular Solar Eclipse of 1984 May 30 is visible from the following geographic regions:

  • Partial Eclipse: North & Central America, Europe, northwest Africa
  • Annular Eclipse: Mexico, southeast U.S., Morocco, Algeria

The map to the right depicts the geographic regions of eclipse visibility. Click on the map to enlarge it. For an explanation of the features appearing in the map, see Key to Solar Eclipse Maps.

The instant of greatest eclipse takes place on 1984 May 30 at 16:45:42 TD (16:44:48 UT1). This is 6.7 days after the Moon reaches apogee. During the eclipse, the Sun is in the constellation Taurus. The synodic month in which the eclipse takes place has a Brown Lunation Number of 760.

The eclipse belongs to Saros 137 and is number 34 of 70 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.

The solar eclipse of 1984 May 30 is a very short annular eclipse with a duration at greatest eclipse of 00m11s. It has an eclipse magnitude of 0.9980.

The annular solar eclipse of 1984 May 30 is preceded two weeks earlier by a penumbral lunar eclipse on 1984 May 15, and it is followed two weeks later by a penumbral lunar eclipse on 1984 Jun 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., UT1 = TD - ΔT). ΔT has a value of 54.0 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 Annular Solar Eclipse of 1984 May 30 .


Eclipse Data: Annular Solar Eclipse of 1984 May 30

Eclipse Characteristics
Parameter Value
Eclipse Magnitude 0.99801
Eclipse Obscuration 0.99602
Gamma 0.27552
Conjunction Times
Event Calendar Date & Time Julian Date
Greatest Eclipse 1984 May 30 at 16:45:41.5 TD (16:44:47.5 UT1) 2445851.197772
Ecliptic Conjunction 1984 May 30 at 16:48:44.8 TD (16:47:50.8 UT1) 2445851.199894
Equatorial Conjunction 1984 May 30 at 16:53:32.9 TD (16:52:38.9 UT1) 2445851.203228
Geocentric Coordinates of Sun and Moon
1984 May 30 at 16:45:41.5 TD (16:44:47.5 UT1)
Coordinate Sun Moon
Right Ascension04h31m02.1s04h30m45.4s
Declination+21°52'05.5"+22°07'14.4"
Semi-Diameter 15'46.4" 15'30.3"
Eq. Hor. Parallax 08.7" 0°56'54.1"
Geocentric Libration of Moon
Angle Value
l -5.2°
b -0.3°
c -7.2°
Prediction Paramaters
Paramater Value
Ephemerides JPL DE406
ΔT 54.0 s
k (penumbra) 0.2725076
k (umbra) 0.2722810
Saros Series 137 (34/70)

Explanation of Solar Eclipse Data Tables

Penumbral Shadow Contacts and Extremes: Annular Solar Eclipse of 1984 May 30

Contacts of Penumbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactP113:55:14.313:54:20.403°52.5'S117°38.7'W
First Internal ContactP216:06:12.716:05:18.721°54.0'N161°13.6'W
Last Internal ContactP317:25:00.117:24:06.147°25.8'N034°16.2'E
Last External ContactP419:35:58.919:35:04.922°46.0'N014°40.9'W
Extreme Northern and Southern Path Limits of Penumbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N115:48:10.115:47:16.137°55.6'N165°39.2'W
South Extreme Path Limit 1S114:46:54.414:46:00.427°37.7'S119°59.9'W
North Extreme Path Limit 2N217:42:57.017:42:03.060°48.1'N049°47.6'E
South Extreme Path Limit 2S218:44:33.418:43:39.401°03.2'S011°57.2'W

Explanation of Penumbral Shadow Contacts and Extremes Tables

Umbral Shadow Contacts and Extremes: Annular Solar Eclipse of 1984 May 30

Contacts of Umbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactU114:57:46.914:56:52.901°26.6'N135°24.9'W
First Internal ContactU214:58:58.314:58:04.401°36.0'N135°46.6'W
Last Internal ContactU318:32:21.718:31:27.828°07.5'N003°54.8'E
Last External ContactU418:33:27.318:32:33.427°59.1'N003°33.9'E
Extreme Northern and Southern Path Limits of Umbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N114:58:38.014:57:44.001°48.2'N135°46.4'W
South Extreme Path Limit 1S114:58:07.214:57:13.301°14.4'N135°25.2'W
North Extreme Path Limit 2N218:32:40.418:31:46.428°18.4'N003°55.9'E
South Extreme Path Limit 2S218:33:08.718:32:14.727°48.2'N003°32.8'E

Explanation of Umbral Shadow Contacts and Extremes Tables

Central Line Extremes and Duration: Annular Solar Eclipse of 1984 May 30

Extreme Limits of the Central Line
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
Extreme Central Line Limit 1C114:58:22.614:57:28.601°31.3'N135°35.8'W
Extreme Central Line Limit 2C218:32:54.618:32:00.628°03.3'N003°44.3'E

Explanation of Central Line Extremes Table

Greatest Eclipse and Greatest Duration
Event Time
TD
Time
UT1
Latitude Longitude Sun
Altitude
Sun
Azimuth
Path Width Central
Duration
Greatest Eclipse16:45:41.516:44:47.537°29.4'N076°57.9'W 73.8° 163.4° 7.2 km00m11.43s
Greatest Duration14:58:22.614:57:28.601°31.3'N135°35.8'W 0.0° 68.1° 72.4 km01m04.54s

Explanation of Greatest Eclipse and Greatest Duration

Polynomial Besselian Elements: Annular Solar Eclipse of 1984 May 30

Polynomial Besselian Elements
1984 May 30 at 17:00:00.0 TD (=t0)
n x y d l1 l2 μ
0 0.05601 0.29867 21.8689 0.55110 0.00492 75.6167
1 0.52089 0.13301 0.0057 -0.00012 -0.00012 14.9999
2 0.00005 -0.00015 -0.0000 -0.00001 -0.00001 -0.0000
3 -0.00001 -0.00000 - - - -
Tan ƒ1 0.0046116
Tan ƒ2 0.0045886

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 = 17.000

Explanation of Polynomial Besselian Elements

Links for the Annular Solar Eclipse of 1984 May 30

Links to Additional Solar Eclipse Information

Eclipse Predictions

Predictions for the Annular Solar Eclipse of 1984 May 30 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 54.0 seconds for this eclipse.

Acknowledgments

Some of the content on this website is based on the book Thousand Year Canon of Solar 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.