Solar Eclipse Prime Page

Annular Solar Eclipse of 1948 May 09

Fred Espenak

Introduction


The Annular Solar Eclipse of 1948 May 09 is visible from the following geographic regions:

  • Partial Eclipse: Asia, Indies, northwest North America
  • Annular Eclipse: Myanmar, Thailand, Laos, Vietnam, China, Japan

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 1948 May 09 at 02:26:04 TD (02:25:35 UT1). This is 6.6 days before the Moon reaches perigee. 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 314.

The eclipse belongs to Saros 137 and is number 32 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 1948 May 09 is a very short annular eclipse with a duration at greatest eclipse of 00m00s. It has an eclipse magnitude of 0.9999.

The annular solar eclipse of 1948 May 09 is preceded two weeks earlier by a partial lunar eclipse on 1948 Apr 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., UT1 = TD - ΔT). ΔT has a value of 28.4 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 Annular Solar Eclipse of 1948 May 09 .


Eclipse Data: Annular Solar Eclipse of 1948 May 09

Eclipse Characteristics
Parameter Value
Eclipse Magnitude 0.99994
Eclipse Obscuration 0.99989
Gamma 0.41332
Conjunction Times
Event Calendar Date & Time Julian Date
Greatest Eclipse 1948 May 09 at 02:26:03.6 TD (02:25:35.2 UT1) 2432680.601102
Ecliptic Conjunction 1948 May 09 at 02:30:35.8 TD (02:30:07.4 UT1) 2432680.604252
Equatorial Conjunction 1948 May 09 at 02:44:18.7 TD (02:43:50.3 UT1) 2432680.613776
Geocentric Coordinates of Sun and Moon
1948 May 09 at 02:26:03.6 TD (02:25:35.2 UT1)
Coordinate Sun Moon
Right Ascension03h03m37.8s03h03m01.1s
Declination+17°18'09.3"+17°40'05.5"
Semi-Diameter 15'50.3" 15'36.6"
Eq. Hor. Parallax 08.7" 0°57'17.4"
Geocentric Libration of Moon
Angle Value
l -5.2°
b -0.5°
c -14.6°
Prediction Paramaters
Paramater Value
Ephemerides JPL DE406
ΔT 28.4 s
k (penumbra) 0.2725076
k (umbra) 0.2722810
Saros Series 137 (32/70)

Explanation of Solar Eclipse Data Tables

Penumbral Shadow Contacts and Extremes: Annular Solar Eclipse of 1948 May 09

Contacts of Penumbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactP123:40:23.223:39:54.806°03.4'S096°00.8'E
First Internal ContactP202:06:53.902:06:25.643°08.7'N040°31.1'E
Last Internal ContactP302:44:48.602:44:20.272°41.2'N043°47.0'W
Last External ContactP405:11:30.105:11:01.735°22.5'N155°51.9'W
Extreme Northern and Southern Path Limits of Penumbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N101:59:08.001:58:39.649°57.8'N037°40.6'E
South Extreme Path Limit 1S100:27:20.600:26:52.228°00.5'S091°54.4'E
North Extreme Path Limit 2N202:52:30.702:52:02.371°27.6'N022°12.5'W
South Extreme Path Limit 2S204:24:49.904:24:21.613°36.1'N152°40.1'W

Explanation of Penumbral Shadow Contacts and Extremes Tables

Umbral Shadow Contacts and Extremes: Annular Solar Eclipse of 1948 May 09

Contacts of Umbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactU100:44:35.700:44:07.302°27.0'N077°18.3'E
First Internal ContactU200:45:39.600:45:11.302°40.1'N076°58.3'E
Last Internal ContactU304:06:18.304:05:49.943°46.2'N134°59.0'W
Last External ContactU404:07:16.304:06:48.043°34.9'N135°20.6'W
Extreme Northern and Southern Path Limits of Umbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N100:45:24.400:44:56.002°49.3'N076°59.2'E
South Extreme Path Limit 1S100:44:51.000:44:22.602°17.8'N077°17.4'E
North Extreme Path Limit 2N204:06:32.004:06:03.743°54.2'N134°57.5'W
South Extreme Path Limit 2S204:07:02.504:06:34.243°27.0'N135°22.1'W

Explanation of Umbral Shadow Contacts and Extremes Tables

Central Line Extremes and Duration: Annular Solar Eclipse of 1948 May 09

Extreme Limits of the Central Line
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
Extreme Central Line Limit 1C100:45:07.700:44:39.302°33.5'N077°08.3'E
Extreme Central Line Limit 2C204:06:47.304:06:18.943°40.5'N135°09.8'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 Eclipse02:26:03.602:25:35.239°49.1'N131°06.4'E 65.4° 152.9° 0.2 km00m00.30s
Greatest Duration00:45:07.700:44:39.302°33.5'N077°08.3'E 0.0° 72.7° 65.5 km00m54.54s

Explanation of Greatest Eclipse and Greatest Duration

Polynomial Besselian Elements: Annular Solar Eclipse of 1948 May 09

Polynomial Besselian Elements
1948 May 09 at 02:00:00.0 TD (=t0)
n x y d l1 l2 μ
0 -0.37146 0.29688 17.2970 0.55043 0.00425 210.9038
1 0.50292 0.20054 0.0107 -0.00011 -0.00011 15.0018
2 0.00007 -0.00011 -0.0000 -0.00001 -0.00001 -0.0000
3 -0.00001 -0.00000 - - - -
Tan ƒ1 0.0046306
Tan ƒ2 0.0046076

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 = 2.000

Explanation of Polynomial Besselian Elements

Links for the Annular Solar Eclipse of 1948 May 09

Links to Additional Solar Eclipse Information

Eclipse Predictions

Predictions for the Annular Solar Eclipse of 1948 May 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 28.4 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.