Solar Eclipse Prime Page

Annular Solar Eclipse of 1955 Dec 14

Fred Espenak

Introduction


The Annular Solar Eclipse of 1955 Dec 14 is visible from the following geographic regions:

  • Partial Eclipse: central & east Africa, Mid East, Asia, East Indies
  • Annular Eclipse: Chad, Sudan, Ethiopia, Somalia, Myanmar, Thailand, Laos, Vietnam, southeast China

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 1955 Dec 14 at 07:02:25 TD (07:01:54 UT1). This is 1.0 days before the Moon reaches apogee. During the eclipse, the Sun is in the constellation Ophiuchus. The synodic month in which the eclipse takes place has a Brown Lunation Number of 408.

The eclipse belongs to Saros 141 and is number 20 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 1955 Dec 14 is an exceptionally long annular eclipse with a duration at greatest eclipse of 12m09s. It has an eclipse magnitude of 0.9176.

The annular solar eclipse of 1955 Dec 14 is preceded two weeks earlier by a partial lunar eclipse on 1955 Nov 29.

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 31.4 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 1955 Dec 14 .


Eclipse Data: Annular Solar Eclipse of 1955 Dec 14

Eclipse Characteristics
Parameter Value
Eclipse Magnitude 0.91764
Eclipse Obscuration 0.84206
Gamma 0.42658
Conjunction Times
Event Calendar Date & Time Julian Date
Greatest Eclipse 1955 Dec 14 at 07:02:25.1 TD (07:01:53.7 UT1) 2435455.792983
Ecliptic Conjunction 1955 Dec 14 at 07:07:33.8 TD (07:07:02.4 UT1) 2435455.796555
Equatorial Conjunction 1955 Dec 14 at 07:04:18.1 TD (07:03:46.6 UT1) 2435455.794290
Geocentric Coordinates of Sun and Moon
1955 Dec 14 at 07:02:25.1 TD (07:01:53.7 UT1)
Coordinate Sun Moon
Right Ascension17h23m01.9s17h22m58.2s
Declination-23°10'20.1"-22°47'23.2"
Semi-Diameter 16'14.9" 14'42.5"
Eq. Hor. Parallax 08.9" 0°53'59.0"
Geocentric Libration of Moon
Angle Value
l 0.9°
b -0.5°
c 5.2°
Prediction Paramaters
Paramater Value
Ephemerides JPL DE406
ΔT 31.4 s
k (penumbra) 0.2725076
k (umbra) 0.2722810
Saros Series 141 (20/70)

Explanation of Solar Eclipse Data Tables

Penumbral Shadow Contacts and Extremes: Annular Solar Eclipse of 1955 Dec 14

Contacts of Penumbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactP104:01:44.404:01:13.012°35.7'N033°44.9'E
Last External ContactP410:03:06.410:02:35.016°29.0'N110°39.8'E
Extreme Northern and Southern Path Limits of Penumbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N105:17:31.805:17:00.309°14.9'S005°19.4'E
South Extreme Path Limit 1S108:47:19.008:46:47.505°20.3'S139°10.7'E

Explanation of Penumbral Shadow Contacts and Extremes Tables

Umbral Shadow Contacts and Extremes: Annular Solar Eclipse of 1955 Dec 14

Contacts of Umbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactU105:10:54.405:10:22.920°37.8'N020°14.8'E
First Internal ContactU205:18:29.105:17:57.722°02.7'N019°03.6'E
Last Internal ContactU308:46:19.408:45:48.025°53.3'N125°08.5'E
Last External ContactU408:53:55.408:53:24.024°28.7'N123°59.6'E
Extreme Northern and Southern Path Limits of Umbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N105:15:39.405:15:08.022°57.0'N020°13.7'E
South Extreme Path Limit 1S105:13:50.005:13:18.619°42.0'N019°03.4'E
North Extreme Path Limit 2N208:49:09.508:48:38.126°47.3'N123°56.5'E
South Extreme Path Limit 2S208:50:59.308:50:27.923°33.1'N125°12.7'E

Explanation of Umbral Shadow Contacts and Extremes Tables

Central Line Extremes and Duration: Annular Solar Eclipse of 1955 Dec 14

Extreme Limits of the Central Line
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
Extreme Central Line Limit 1C105:14:41.005:14:09.521°18.9'N019°38.6'E
Extreme Central Line Limit 2C208:50:08.208:49:36.825°09.7'N124°34.7'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 Eclipse07:02:25.107:01:53.702°04.6'N072°04.1'E 64.7° 178.1° 345.7 km12m09.17s
Greatest Duration07:01:01.807:00:30.402°03.3'N071°52.7'E 64.7° 176.6° 345.8 km12m09.23s

Explanation of Greatest Eclipse and Greatest Duration

Polynomial Besselian Elements: Annular Solar Eclipse of 1955 Dec 14

Polynomial Besselian Elements
1955 Dec 14 at 07:00:00.0 TD (=t0)
n x y d l1 l2 μ
0 -0.03606 0.42554 -23.1732 0.57509 0.02879 286.4231
1 0.50298 0.01860 -0.0028 0.00002 0.00002 14.9964
2 -0.00001 0.00014 0.0000 -0.00001 -0.00001 -0.0000
3 -0.00001 -0.00000 - - - -
Tan ƒ1 0.0047513
Tan ƒ2 0.0047277

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 = 7.000

Explanation of Polynomial Besselian Elements

Links for the Annular Solar Eclipse of 1955 Dec 14

Links to Additional Solar Eclipse Information

Eclipse Predictions

Predictions for the Annular Solar Eclipse of 1955 Dec 14 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 31.4 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.