Solar Eclipse Prime Page

Annular Solar Eclipse of 1904 Mar 17

Fred Espenak

Introduction


The Annular Solar Eclipse of 1904 Mar 17 is visible from the following geographic regions:

  • Partial Eclipse: east Africa, south Asia
  • Annular Eclipse: Tanzania, Mozambique, Cambodia, Laos, Vietnam, Myanmar

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 1904 Mar 17 at 05:40:44 TD (05:40:41 UT1). This is 3.0 days after the Moon reaches apogee. During the eclipse, the Sun is in the constellation Pisces. The synodic month in which the eclipse takes place has a Brown Lunation Number of -232.

The eclipse belongs to Saros 128 and is number 52 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 1904 Mar 17 is a relatively long annular eclipse with a duration at greatest eclipse of 08m07s. It has an eclipse magnitude of 0.9368.

The annular solar eclipse of 1904 Mar 17 is preceded two weeks earlier by a penumbral lunar eclipse on 1904 Mar 02, and it is followed two weeks later by a penumbral lunar eclipse on 1904 Mar 31.

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 2.8 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 Annular Solar Eclipse of 1904 Mar 17 .


Eclipse Data: Annular Solar Eclipse of 1904 Mar 17

Eclipse Characteristics
Parameter Value
Eclipse Magnitude 0.93675
Eclipse Obscuration 0.87751
Gamma 0.12993
Conjunction Times
Event Calendar Date & Time Julian Date
Greatest Eclipse 1904 Mar 17 at 05:40:44.1 TD (05:40:41.3 UT1) 2416556.736590
Ecliptic Conjunction 1904 Mar 17 at 05:39:11.3 TD (05:39:08.5 UT1) 2416556.735515
Equatorial Conjunction 1904 Mar 17 at 05:45:36.1 TD (05:45:33.3 UT1) 2416556.739969
Geocentric Coordinates of Sun and Moon
1904 Mar 17 at 05:40:44.1 TD (05:40:41.3 UT1)
Coordinate Sun Moon
Right Ascension23h46m07.3s23h45m58.8s
Declination-01°30'13.7"-01°23'30.5"
Semi-Diameter 16'04.1" 14'49.6"
Eq. Hor. Parallax 08.8" 0°54'24.9"
Geocentric Libration of Moon
Angle Value
l -2.9°
b -0.2°
c -25.0°
Prediction Paramaters
Paramater Value
Ephemerides JPL DE406
ΔT 2.8 s
k (penumbra) 0.2725076
k (umbra) 0.2722810
Saros Series 128 (52/73)

Explanation of Solar Eclipse Data Tables

Penumbral Shadow Contacts and Extremes: Annular Solar Eclipse of 1904 Mar 17

Contacts of Penumbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactP102:36:24.102:36:21.312°57.5'S052°43.6'E
First Internal ContactP204:52:21.204:52:18.400°04.0'S019°05.2'E
Last Internal ContactP306:28:59.406:28:56.635°24.2'N173°51.6'E
Last External ContactP408:44:57.808:44:55.022°30.7'N140°18.9'E
Extreme Northern and Southern Path Limits of Penumbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N104:15:47.304:15:44.526°55.5'N029°00.6'E
South Extreme Path Limit 1S103:55:47.003:55:44.243°55.0'S031°45.1'E
North Extreme Path Limit 2N207:05:16.107:05:13.362°15.5'N163°01.8'E
South Extreme Path Limit 2S207:25:57.007:25:54.208°28.8'S160°53.8'E

Explanation of Penumbral Shadow Contacts and Extremes Tables

Umbral Shadow Contacts and Extremes: Annular Solar Eclipse of 1904 Mar 17

Contacts of Umbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactU103:41:08.203:41:05.410°23.8'S036°36.8'E
First Internal ContactU203:46:38.603:46:35.810°02.8'S035°14.8'E
Last Internal ContactU307:34:47.307:34:44.525°25.0'N157°45.9'E
Last External ContactU407:40:14.207:40:11.425°04.3'N156°24.9'E
Extreme Northern and Southern Path Limits of Umbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N103:44:13.903:44:11.108°52.6'S035°52.8'E
South Extreme Path Limit 1S103:43:35.903:43:33.111°34.2'S035°57.9'E
North Extreme Path Limit 2N207:37:09.707:37:06.926°34.4'N157°08.1'E
South Extreme Path Limit 2S207:37:48.807:37:46.023°54.7'N157°03.4'E

Explanation of Umbral Shadow Contacts and Extremes Tables

Central Line Extremes and Duration: Annular Solar Eclipse of 1904 Mar 17

Extreme Limits of the Central Line
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
Extreme Central Line Limit 1C103:43:53.303:43:50.510°13.5'S035°55.8'E
Extreme Central Line Limit 2C207:37:30.807:37:28.025°14.4'N157°05.4'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 Eclipse05:40:44.105:40:41.305°38.9'N094°42.5'E 82.5° 162.4° 237.1 km08m07.27s
Greatest Duration05:37:37.905:37:35.105°11.1'N094°03.1'E 82.4° 150.9° 237.4 km08m07.36s

Explanation of Greatest Eclipse and Greatest Duration

Polynomial Besselian Elements: Annular Solar Eclipse of 1904 Mar 17

Polynomial Besselian Elements
1904 Mar 17 at 06:00:00.0 TD (=t0)
n x y d l1 l2 μ
0 0.11644 0.17334 -1.4989 0.56933 0.02305 267.8421
1 0.48522 0.15420 0.0161 -0.00007 -0.00007 15.0042
2 0.00000 0.00001 0.0000 -0.00001 -0.00001 0.0000
3 -0.00001 -0.00000 - - - -
Tan ƒ1 0.0046984
Tan ƒ2 0.0046750

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 = 6.000

Explanation of Polynomial Besselian Elements

Links for the Annular Solar Eclipse of 1904 Mar 17

Links to Additional Solar Eclipse Information

Eclipse Predictions

Predictions for the Annular Solar Eclipse of 1904 Mar 17 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 2.8 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.