Solar Eclipse Prime Page

Total Solar Eclipse of 1963 Jul 20

Fred Espenak

Introduction


The Total Solar Eclipse of 1963 Jul 20 is visible from the following geographic regions:

  • Partial Eclipse: northeast Asia, North America, Central America
  • Total Eclipse: Japan, north Pacific, Alaska, north Canada, east Canada, Maine

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 1963 Jul 20 at 20:36:13 TD (20:35:38 UT1). This is 4.1 days after the Moon reaches perigee. During the eclipse, the Sun is in the constellation Gemini. The synodic month in which the eclipse takes place has a Brown Lunation Number of 502.

The eclipse belongs to Saros 145 and is number 19 of 77 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 total solar eclipse of 1963 Jul 20 is preceded two weeks earlier by a partial lunar eclipse on 1963 Jul 06.

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 34.8 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 Total Solar Eclipse of 1963 Jul 20 .


Eclipse Data: Total Solar Eclipse of 1963 Jul 20

Eclipse Characteristics
Parameter Value
Eclipse Magnitude 1.02236
Eclipse Obscuration 1.04522
Gamma 0.65710
Conjunction Times
Event Calendar Date & Time Julian Date
Greatest Eclipse 1963 Jul 20 at 20:36:13.1 TD (20:35:38.3 UT1) 2438231.358082
Ecliptic Conjunction 1963 Jul 20 at 20:43:16.7 TD (20:42:41.9 UT1) 2438231.362985
Equatorial Conjunction 1963 Jul 20 at 20:29:11.6 TD (20:28:36.8 UT1) 2438231.353204
Geocentric Coordinates of Sun and Moon
1963 Jul 20 at 20:36:13.1 TD (20:35:38.3 UT1)
Coordinate Sun Moon
Right Ascension07h57m51.3s07h58m07.4s
Declination+20°41'02.2"+21°19'05.7"
Semi-Diameter 15'44.3" 15'53.9"
Eq. Hor. Parallax 08.7" 0°58'20.8"
Geocentric Libration of Moon
Angle Value
l 4.8°
b -0.8°
c 12.8°
Prediction Paramaters
Paramater Value
Ephemerides JPL DE406
ΔT 34.8 s
k (penumbra) 0.2725076
k (umbra) 0.2722810
Saros Series 145 (19/77)

Explanation of Solar Eclipse Data Tables

Penumbral Shadow Contacts and Extremes: Total Solar Eclipse of 1963 Jul 20

Contacts of Penumbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactP118:04:48.218:04:13.428°45.3'N168°32.5'E
Last External ContactP423:07:47.023:07:12.118°19.2'N068°04.0'W
Extreme Northern and Southern Path Limits of Penumbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N118:38:56.018:38:21.211°47.5'N167°27.1'E
South Extreme Path Limit 1S122:33:34.022:32:59.101°11.3'N066°14.2'W

Explanation of Penumbral Shadow Contacts and Extremes Tables

Umbral Shadow Contacts and Extremes: Total Solar Eclipse of 1963 Jul 20

Contacts of Umbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactU119:14:15.819:13:41.042°59.5'N142°31.5'E
First Internal ContactU219:15:02.919:14:28.143°13.8'N142°08.9'E
Last Internal ContactU321:57:31.421:56:56.633°08.5'N043°24.7'W
Last External ContactU421:58:13.021:57:38.232°55.4'N043°42.4'W
Extreme Northern and Southern Path Limits of Umbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N119:14:56.919:14:22.143°17.5'N142°07.6'E
South Extreme Path Limit 1S119:14:22.019:13:47.242°55.8'N142°32.8'E
North Extreme Path Limit 2N221:57:36.821:57:01.933°11.9'N043°24.2'W
South Extreme Path Limit 2S221:58:07.521:57:32.732°52.0'N043°42.9'W

Explanation of Umbral Shadow Contacts and Extremes Tables

Central Line Extremes and Duration: Total Solar Eclipse of 1963 Jul 20

Extreme Limits of the Central Line
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
Extreme Central Line Limit 1C119:14:39.419:14:04.643°06.6'N142°20.2'E
Extreme Central Line Limit 2C221:57:52.221:57:17.433°01.9'N043°33.6'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 Eclipse20:36:13.120:35:38.361°41.6'N119°42.0'W 48.6° 191.1° 101.5 km01m39.67s
Greatest Duration20:33:37.120:33:02.261°56.6'N121°45.5'W 48.6° 187.0° 101.4 km01m39.72s

Explanation of Greatest Eclipse and Greatest Duration

Polynomial Besselian Elements: Total Solar Eclipse of 1963 Jul 20

Polynomial Besselian Elements
1963 Jul 20 at 21:00:00.0 TD (=t0)
n x y d l1 l2 μ
0 0.28265 0.63240 20.6793 0.54365 -0.00249 133.4379
1 0.55049 -0.05439 -0.0077 0.00011 0.00011 15.0008
2 -0.00004 -0.00016 -0.0000 -0.00001 -0.00001 0.0000
3 -0.00001 0.00000 - - - -
Tan ƒ1 0.0046012
Tan ƒ2 0.0045782

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 = 21.000

Explanation of Polynomial Besselian Elements

Links for the Total Solar Eclipse of 1963 Jul 20

Links to Additional Solar Eclipse Information

Eclipse Predictions

Predictions for the Total Solar Eclipse of 1963 Jul 20 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 34.8 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.