Solar Eclipse Prime Page

Annular Solar Eclipse of 1999 Feb 16

Fred Espenak

Key to Solar Eclipse Figure (below)

Introduction


The Annular Solar Eclipse of 1999 Feb 16 is visible from the following geographic regions:

  • Partial Eclipse: south Africa, Antarctica, Australia, New Zealand
  • Annular Eclipse: south Indian, Australia

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 1999 Feb 16 at 06:34:38 TD (06:33:35 UT1). This is 4.3 days before the Moon reaches perigee. During the eclipse, the Sun is in the constellation Capricornus. The synodic month in which the eclipse takes place has a Brown Lunation Number of 942.

The eclipse belongs to Saros 140 and is number 28 of 71 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 annular solar eclipse of 1999 Feb 16 is preceded two weeks earlier by a penumbral lunar eclipse on 1999 Jan 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 63.5 seconds for this eclipse.

The following links provide maps and data for the eclipse.

Eclipse Data: Annular Solar Eclipse of 1999 Feb 16

Eclipse Characteristics
Parameter Value
Eclipse Magnitude 0.99276
Eclipse Obscuration 0.98557
Gamma-0.47260
Conjunction Times
Event Calendar Date and Time Julian Date
Greatest Eclipse 1999 Feb 16 at 06:34:38.1 TD (06:33:34.6 UT1) 2451225.773317
Ecliptic Conjunction 1999 Feb 16 at 06:39:45.2 TD (06:38:41.7 UT1) 2451225.776872
Equatorial Conjunction 1999 Feb 16 at 06:21:25.3 TD (06:20:21.8 UT1) 2451225.764141
Geocentric Coordinates of Sun and Moon
1999 Feb 16 at 06:34:38.1 TD (06:33:34.6 UT1)
Coordinate Sun Moon
Right Ascension21h57m21.0s21h57m48.9s
Declination-12°28'00.1"-12°54'33.4"
Semi-Diameter 16'11.4" 15'50.7"
Eq. Hor. Parallax 08.9" 0°58'09.2"
Geocentric Libration of Moon
Angle Value
l -5.0°
b 0.6°
c -21.6°
Prediction Parameters
Paramater Value
Ephemerides JPL DE405
ΔT 63.5 s
k (penumbra) 0.2725076
k (umbra) 0.2722810
Saros Series 140 (28/71)

Explanation of Solar Eclipse Data Tables

Penumbral Shadow Contacts and Extremes: Annular Solar Eclipse of 1999 Feb 16

Contacts of Penumbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactP103:53:02.303:51:58.931°21.8'S027°45.9'E
Last External ContactP409:16:13.609:15:10.203°17.7'S135°27.2'E
Extreme Northern and Southern Path Limits of Penumbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N104:39:14.704:38:11.209°44.7'S021°47.9'E
South Extreme Path Limit 1S108:29:55.208:28:51.718°24.3'N142°05.7'E

Explanation of Penumbral Shadow Contacts and Extremes Tables

Umbral Shadow Contacts and Extremes: Annular Solar Eclipse of 1999 Feb 16

Contacts of Umbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactU104:57:41.204:56:37.741°20.1'S008°08.2'E
First Internal ContactU204:59:15.204:58:11.741°42.5'S007°35.7'E
Last Internal ContactU308:10:12.808:09:09.313°46.5'S154°20.0'E
Last External ContactU408:11:40.908:10:37.413°25.1'S153°53.0'E
Extreme Northern and Southern Path Limits of Umbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N104:58:02.404:56:58.941°07.7'S008°07.8'E
South Extreme Path Limit 1S104:58:54.104:57:50.641°54.8'S007°35.9'E
North Extreme Path Limit 2N208:11:20.908:10:17.413°13.2'S153°55.2'E
South Extreme Path Limit 2S208:10:32.708:09:29.213°58.3'S154°17.8'E

Explanation of Umbral Shadow Contacts and Extremes Tables

Central Line Extremes and Duration: Annular Solar Eclipse of 1999 Feb 16

Extreme Limits of the Central Line
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
Extreme Central Line Limit 1C104:58:28.204:57:24.741°31.2'S007°52.0'E
Extreme Central Line Limit 2C208:10:56.908:09:53.413°35.7'S154°06.4'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 Eclipse06:34:38.106:33:34.639°49.2'S093°53.3'E 61.6° 341.8° 28.8 km00m39.60s
Greatest Duration04:58:28.204:57:24.741°31.2'S007°51.9'E 0.0° 106.8° 96.2 km01m18.50s

Explanation of Greatest Eclipse and Greatest Duration

Polynomial Besselian Elements: Annular Solar Eclipse of 1999 Feb 16

Polynomial Besselian Elements
1999 Feb 16 at 07:00:00.0 TD (=t0)
n x y d l1 l2 μ
0 0.34195 -0.40033 -12.4596 0.55227 0.00608 281.4775
1 0.53182 0.13613 0.0141 -0.00013 -0.00013 15.0019
2 -0.00002 0.00010 0.0000 -0.00001 -0.00001 0.0000
3 -0.00001 -0.00000 - - - -
Tan ƒ1 0.0047333
Tan ƒ2 0.0047097

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

Eclipse Publications

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For more visit: AstroPixels Publishing

Links for the Annular Solar Eclipse of 1999 Feb 16

Links to Additional Solar Eclipse Information

  • Home - home page of EclipseWise with predictions for both solar and lunar eclipses

Decade Tables of Solar Eclipses:
| 1901 - 1910 | 1911 - 1919 | 1921 - 1930 | 1931 - 1940 | 1941 - 1950 |
| 1951 - 1960 | 1961 - 1970 | 1971 - 1980 | 1981 - 1990 | 1991 - 2000 |
| 2001 - 2010 | 2011 - 2020 | 2021 - 2030 | 2031 - 2040 | 2041 - 2050 |
| 2051 - 2060 | 2061 - 2070 | 2071 - 2080 | 2081 - 2090 | 2091 - 2100 |

Solar Eclipse Publications

Eclipse Publications

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jpeg jpeg
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For more visit: AstroPixels Publishing

Eclipse Predictions

Predictions for the Annular Solar Eclipse of 1999 Feb 16 were generated using the JPL DE405 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 63.5 seconds for this eclipse.

Acknowledgments

Some of the content on this website is based on the books 21st Century Canon of Solar Eclipses and 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 concealed.