Solar Eclipse Prime Page

Annular Solar Eclipse of 1994 May 10

Fred Espenak

Introduction


The Annular Solar Eclipse of 1994 May 10 is visible from the following geographic regions:

  • Partial Eclipse: east Pacific, North America, Europe, west Africa
  • Annular Eclipse: Pacific, central U.S., east Canada, Morocco

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 1994 May 10 at 17:12:27 TD (17:11:26 UT1). This is 1.6 days after the Moon reaches apogee. During the eclipse, the Sun is in the constellation Aries. The synodic month in which the eclipse takes place has a Brown Lunation Number of 883.

The eclipse belongs to Saros 128 and is number 57 of 73 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 solar eclipse of 1994 May 10 is a relatively long annular eclipse with a duration at greatest eclipse of 06m13s. It has an eclipse magnitude of 0.9431.

The annular solar eclipse of 1994 May 10 is followed two weeks later by a partial lunar eclipse on 1994 May 25.

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 60.2 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 Annular Solar Eclipse of 1994 May 10 .


Eclipse Data: Annular Solar Eclipse of 1994 May 10

Eclipse Characteristics
Parameter Value
Eclipse Magnitude 0.94315
Eclipse Obscuration 0.88953
Gamma 0.40771
Conjunction Times
Event Calendar Date & Time Julian Date
Greatest Eclipse 1994 May 10 at 17:12:26.5 TD (17:11:26.3 UT1) 2449483.216276
Ecliptic Conjunction 1994 May 10 at 17:07:34.4 TD (17:06:34.2 UT1) 2449483.212896
Equatorial Conjunction 1994 May 10 at 17:20:50.9 TD (17:19:50.7 UT1) 2449483.222115
Geocentric Coordinates of Sun and Moon
1994 May 10 at 17:12:26.5 TD (17:11:26.3 UT1)
Coordinate Sun Moon
Right Ascension03h09m27.2s03h09m11.3s
Declination+17°41'21.5"+18°03'01.1"
Semi-Diameter 15'50.2" 14'44.0"
Eq. Hor. Parallax 08.7" 0°54'04.4"
Geocentric Libration of Moon
Angle Value
l -1.6°
b -0.5°
c -17.2°
Prediction Paramaters
Paramater Value
Ephemerides JPL DE406
ΔT 60.2 s
k (penumbra) 0.2725076
k (umbra) 0.2722810
Saros Series 128 (57/73)

Explanation of Solar Eclipse Data Tables

Penumbral Shadow Contacts and Extremes: Annular Solar Eclipse of 1994 May 10

Contacts of Penumbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactP114:13:11.314:12:11.104°57.0'N125°31.8'W
First Internal ContactP216:55:59.316:54:59.056°49.0'N166°09.9'E
Last Internal ContactP317:28:40.217:27:40.070°22.2'N070°35.2'E
Last External ContactP420:11:35.720:10:35.423°47.6'N025°27.7'W
Extreme Northern and Southern Path Limits of Penumbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N116:49:07.816:48:07.561°59.5'N160°13.9'E
South Extreme Path Limit 1S115:04:40.315:03:40.017°50.5'S130°56.3'W
North Extreme Path Limit 2N217:35:29.917:34:29.772°09.6'N087°50.3'E
South Extreme Path Limit 2S219:20:16.319:19:16.101°04.2'N020°23.3'W

Explanation of Penumbral Shadow Contacts and Extremes Tables

Umbral Shadow Contacts and Extremes: Annular Solar Eclipse of 1994 May 10

Contacts of Umbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactU115:21:36.415:20:36.213°04.0'N145°17.8'W
First Internal ContactU215:26:58.915:25:58.714°04.9'N146°59.0'W
Last Internal ContactU318:57:48.718:56:48.532°47.2'N003°14.8'W
Last External ContactU419:03:09.519:02:09.231°47.8'N005°02.0'W
Extreme Northern and Southern Path Limits of Umbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N115:25:43.915:24:43.614°48.0'N146°54.9'W
South Extreme Path Limit 1S115:22:53.715:21:53.512°20.3'N145°22.4'W
North Extreme Path Limit 2N218:59:03.118:58:02.933°29.1'N003°13.8'W
South Extreme Path Limit 2S219:01:52.819:00:52.631°05.2'N005°01.9'W

Explanation of Umbral Shadow Contacts and Extremes Tables

Central Line Extremes and Duration: Annular Solar Eclipse of 1994 May 10

Extreme Limits of the Central Line
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
Extreme Central Line Limit 1C115:24:17.315:23:17.113°33.8'N146°08.1'W
Extreme Central Line Limit 2C219:00:29.518:59:29.232°16.8'N004°08.8'W

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 Eclipse17:12:26.517:11:26.341°32.2'N084°22.4'W 65.7° 167.5° 230.1 km06m13.43s
Greatest Duration17:17:41.217:16:40.942°04.1'N082°06.5'W 65.6° 175.3° 229.6 km06m13.64s

Explanation of Greatest Eclipse and Greatest Duration

Polynomial Besselian Elements: Annular Solar Eclipse of 1994 May 10

Polynomial Besselian Elements
1994 May 10 at 17:00:00.0 TD (=t0)
n x y d l1 l2 μ
0 -0.17342 0.38365 17.6861 0.56693 0.02067 75.9092
1 0.49906 0.08694 0.0106 -0.00003 -0.00003 15.0016
2 0.00003 -0.00012 -0.0000 -0.00001 -0.00001 -0.0000
3 -0.00001 -0.00000 - - - -
Tan ƒ1 0.0046308
Tan ƒ2 0.0046077

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 1994 May 10

Links to Additional Solar Eclipse Information

Eclipse Predictions

Predictions for the Annular Solar Eclipse of 1994 May 10 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 60.2 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.