Solar Eclipse Prime Page

Total Solar Eclipse of 2185 Jul 26

Fred Espenak

Introduction


The Total Solar Eclipse of 2185 Jul 26 is visible from the geographic regions shown on the map to the right. 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 2185 Jul 26 at 22:38:16 TD (22:34:12 UT1). This is 2.1 days after the Moon reaches perigee. During the eclipse, the Sun is in the constellation Cancer. The synodic month in which the eclipse takes place has a Brown Lunation Number of 3248.

The eclipse belongs to Saros 129 and is number 61 of 80 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.

This total eclipse is unsual in that it does NOT have a southern path limit. Instead, one edge of the umbral shadow falls off into space throughout the eclipse. Gamma has a value of -0.9967.

The total solar eclipse of 2185 Jul 26 is followed two weeks later by a total lunar eclipse on 2185 Aug 11.

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 244.6 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 2185 Jul 26 .


Eclipse Data: Total Solar Eclipse of 2185 Jul 26

Eclipse Characteristics
Parameter Value
Eclipse Magnitude 1.03696
Eclipse Obscuration 1.07528
Gamma-0.99674
Conjunction Times
Event Calendar Date & Time Julian Date
Greatest Eclipse 2185 Jul 26 at 22:38:16.4 TD (22:34:11.8 UT1) 2519322.440414
Ecliptic Conjunction 2185 Jul 26 at 22:28:08.7 TD (22:24:04.1 UT1) 2519322.433381
Equatorial Conjunction 2185 Jul 26 at 22:53:33.1 TD (22:49:28.5 UT1) 2519322.451024
Geocentric Coordinates of Sun and Moon
2185 Jul 26 at 22:38:16.4 TD (22:34:11.8 UT1)
Coordinate Sun Moon
Right Ascension08h27m21.6s08h26m45.5s
Declination+19°06'48.7"+18°07'50.3"
Semi-Diameter 15'44.7" 16'19.8"
Eq. Hor. Parallax 08.7" 0°59'55.8"
Geocentric Libration of Moon
Angle Value
l 3.9°
b 1.3°
c 15.2°
Prediction Paramaters
Paramater Value
Ephemerides JPL DE406
ΔT 244.6 s
k (penumbra) 0.2725076
k (umbra) 0.2722810
Saros Series 129 (61/80)

Explanation of Solar Eclipse Data Tables

Penumbral Shadow Contacts and Extremes: Total Solar Eclipse of 2185 Jul 26

Contacts of Penumbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactP120:35:13.120:31:08.530°23.3'S155°41.0'E
Last External ContactP400:41:16.500:37:11.945°27.2'S118°10.3'W
Extreme Northern and Southern Path Limits of Penumbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N121:13:00.321:08:55.718°29.2'S141°09.3'E
South Extreme Path Limit 1S100:03:29.623:59:25.033°56.4'S101°36.6'W

Explanation of Penumbral Shadow Contacts and Extremes Tables

Umbral Shadow Contacts and Extremes: Total Solar Eclipse of 2185 Jul 26

Contacts of Umbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactU122:23:15.722:19:11.165°04.0'S165°08.5'E
Last External ContactU422:53:04.222:48:59.670°53.1'S161°18.2'W
Extreme Northern and Southern Path Limits of Umbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N122:36:41.422:32:36.870°20.9'S175°18.9'E
South Extreme Path Limit 1S122:39:40.422:35:35.871°00.7'S179°01.4'E

Explanation of Umbral Shadow Contacts and Extremes Tables

Central Line Extremes and Duration: Total Solar Eclipse of 2185 Jul 26

Extreme Limits of the Central Line
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
Extreme Central Line Limit 1C122:35:29.622:31:24.968°37.9'S176°13.5'E
Extreme Central Line Limit 2C222:40:52.422:36:47.869°44.9'S177°31.7'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 Eclipse22:38:16.422:34:11.867°53.7'S179°48.7'E 1.5° 21.1° 4490.9 km02m26.86s
Greatest Duration22:38:08.122:34:03.567°52.0'S179°18.9'W 1.5° 21.2° 4500.8 km02m26.86s

Explanation of Greatest Eclipse and Greatest Duration

Polynomial Besselian Elements: Total Solar Eclipse of 2185 Jul 26

Polynomial Besselian Elements
2185 Jul 26 at 23:00:00.0 TD (=t0)
n x y d l1 l2 μ
0 0.06055 -1.01605 19.1125 0.53654 -0.00957 163.2779
1 0.56339 -0.08200 -0.0093 0.00009 0.00008 15.0016
2 -0.00003 -0.00007 -0.0000 -0.00001 -0.00001 0.0000
3 -0.00001 0.00000 - - - -
Tan ƒ1 0.0046027
Tan ƒ2 0.0045798

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 = 23.000

Explanation of Polynomial Besselian Elements

Links for the Total Solar Eclipse of 2185 Jul 26

Links to Additional Solar Eclipse Information

Calendar

The Gregorian calendar (also called the Western calendar) is internationally the most widely used civil calendar. It is named for Pope Gregory XIII, who introduced it in 1582. On this website, the Gregorian calendar is used for all calendar dates from 1582 Oct 15 onwards. Before that date, the Julian calendar is used. For more information on this topic, see Calendar Dates.

The Julian calendar does not include the year 0. Thus the year 1 BCE is followed by the year 1 CE (See: BCE/CE Dating Conventions). This is awkward for arithmetic calculations. Years in this catalog are numbered astronomically and include the year 0. Historians should note there is a difference of one year between astronomical dates and BCE dates. Thus, the astronomical year 0 corresponds to 1 BCE, and astronomical year -1 corresponds to 2 BCE, etc..

Eclipse Predictions

Predictions for the Total Solar Eclipse of 2185 Jul 26 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 244.6 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.