Solar Eclipse Prime Page

Annular Solar Eclipse of 2099 Mar 21

Fred Espenak

Introduction


The Annular Solar Eclipse of 2099 Mar 21 is visible from the following geographic regions:

  • Partial Eclipse: Australia, New Zealand, Antarctica, North America
  • Annular Eclipse: Central Pacific

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 2099 Mar 21 at 22:54:32 TD (22:52:26 UT1). This is 2.1 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 2180.

The eclipse belongs to Saros 131 and is number 55 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 2099 Mar 21 is a relatively long annular eclipse with a duration at greatest eclipse of 07m32s. It has an eclipse magnitude of 0.9318.

The annular solar eclipse of 2099 Mar 21 is followed two weeks later by a partial lunar eclipse on 2099 Apr 05.

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 126.2 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 2099 Mar 21 .


Eclipse Data: Annular Solar Eclipse of 2099 Mar 21

Eclipse Characteristics
Parameter Value
Eclipse Magnitude 0.93180
Eclipse Obscuration 0.86826
Gamma-0.40163
Conjunction Times
Event Calendar Date & Time Julian Date
Greatest Eclipse 2099 Mar 21 at 22:54:32.0 TD (22:52:25.9 UT1) 2487784.453077
Ecliptic Conjunction 2099 Mar 21 at 22:49:43.7 TD (22:47:37.5 UT1) 2487784.449739
Equatorial Conjunction 2099 Mar 21 at 22:27:57.2 TD (22:25:51.1 UT1) 2487784.434619
Geocentric Coordinates of Sun and Moon
2099 Mar 21 at 22:54:32.0 TD (22:52:25.9 UT1)
Coordinate Sun Moon
Right Ascension00h06m00.9s00h06m43.3s
Declination+00°39'05.5"+00°20'09.1"
Semi-Diameter 16'03.5" 14'45.5"
Eq. Hor. Parallax 08.8" 0°54'09.7"
Geocentric Libration of Moon
Angle Value
l -2.1°
b 0.5°
c -21.9°
Prediction Paramaters
Paramater Value
Ephemerides JPL DE406
ΔT 126.2 s
k (penumbra) 0.2725076
k (umbra) 0.2722810
Saros Series 131 (55/70)

Explanation of Solar Eclipse Data Tables

Penumbral Shadow Contacts and Extremes: Annular Solar Eclipse of 2099 Mar 21

Contacts of Penumbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactP119:54:47.919:52:41.744°12.1'S154°08.9'E
First Internal ContactP222:37:38.522:35:32.480°23.9'S070°59.8'W
Last Internal ContactP323:12:04.523:09:58.340°46.1'S076°20.3'W
Last External ContactP401:54:23.701:52:17.514°27.6'N116°11.0'W
Extreme Northern and Southern Path Limits of Penumbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N120:58:00.020:55:53.919°34.3'S137°58.5'E
South Extreme Path Limit 1S122:28:20.922:26:14.773°41.5'S067°02.7'W
North Extreme Path Limit 2N200:50:52.400:48:46.239°06.1'N099°54.7'W
South Extreme Path Limit 2S223:21:33.023:19:26.947°53.6'S078°52.4'W

Explanation of Penumbral Shadow Contacts and Extremes Tables

Umbral Shadow Contacts and Extremes: Annular Solar Eclipse of 2099 Mar 21

Contacts of Umbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactU121:03:08.821:01:02.652°30.0'S137°16.8'E
First Internal ContactU221:09:27.221:07:21.053°43.7'S135°44.5'E
Last Internal ContactU300:39:54.600:37:48.504°54.9'N097°40.7'W
Last External ContactU400:46:09.500:44:03.406°08.3'N099°13.6'W
Extreme Northern and Southern Path Limits of Umbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N121:05:04.221:02:58.051°34.9'S136°46.4'E
South Extreme Path Limit 1S121:07:35.921:05:29.754°37.8'S136°14.1'E
North Extreme Path Limit 2N200:44:14.500:42:08.307°03.3'N098°44.1'W
South Extreme Path Limit 2S200:41:46.000:39:39.804°00.8'N098°09.0'W

Explanation of Umbral Shadow Contacts and Extremes Tables

Central Line Extremes and Duration: Annular Solar Eclipse of 2099 Mar 21

Extreme Limits of the Central Line
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
Extreme Central Line Limit 1C121:06:17.621:04:11.453°05.8'S136°30.8'E
Extreme Central Line Limit 2C200:43:02.600:40:56.405°32.6'N098°27.3'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 Eclipse22:54:32.022:52:25.920°01.2'S149°53.2'W 66.2° 328.9° 275.0 km07m32.32s
Greatest Duration22:54:14.822:52:08.620°05.6'S149°24.9'W 66.2° 329.3° 274.9 km07m32.32s

Explanation of Greatest Eclipse and Greatest Duration

Polynomial Besselian Elements: Annular Solar Eclipse of 2099 Mar 21

Polynomial Besselian Elements
2099 Mar 21 at 23:00:00.0 TD (=t0)
n x y d l1 l2 μ
0 0.23612 -0.32815 0.6538 0.57054 0.02426 163.2804
1 0.44210 0.24693 0.0159 -0.00005 -0.00005 15.0042
2 -0.00000 0.00001 -0.0000 -0.00001 -0.00001 0.0000
3 -0.00000 -0.00000 - - - -
Tan ƒ1 0.0046955
Tan ƒ2 0.0046721

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 Annular Solar Eclipse of 2099 Mar 21

Links to Additional Solar Eclipse Information

Eclipse Predictions

Predictions for the Annular Solar Eclipse of 2099 Mar 21 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 126.2 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.