Solar Eclipse Prime Page

Annular Solar Eclipse of 2074 Jan 27

Fred Espenak

Introduction


The Annular Solar Eclipse of 2074 Jan 27 is visible from the following geographic regions:

  • Partial Eclipse: Africa, Asia, Indies
  • Annular Eclipse: Sudan, Ethiopia, Somalia, Sri Lanka, Myanmar, Thailand, Laos, Vietnam, China, Japan

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 2074 Jan 27 at 06:44:15 TD (06:42:33 UT1). This is 5.7 days after 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 1869.

The eclipse belongs to Saros 132 and is number 49 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 2074 Jan 27 is followed two weeks later by a penumbral lunar eclipse on 2074 Feb 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 102.8 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 2074 Jan 27 .


Eclipse Data: Annular Solar Eclipse of 2074 Jan 27

Eclipse Characteristics
Parameter Value
Eclipse Magnitude 0.97978
Eclipse Obscuration 0.95998
Gamma 0.42511
Conjunction Times
Event Calendar Date & Time Julian Date
Greatest Eclipse 2074 Jan 27 at 06:44:15.3 TD (06:42:32.5 UT1) 2478599.779543
Ecliptic Conjunction 2074 Jan 27 at 06:39:34.7 TD (06:37:51.9 UT1) 2478599.776295
Equatorial Conjunction 2074 Jan 27 at 06:51:50.3 TD (06:50:07.5 UT1) 2478599.784809
Geocentric Coordinates of Sun and Moon
2074 Jan 27 at 06:44:15.3 TD (06:42:32.5 UT1)
Coordinate Sun Moon
Right Ascension20h40m20.9s20h40m04.5s
Declination-18°20'28.4"-17°56'22.6"
Semi-Diameter 16'14.5" 15'41.1"
Eq. Hor. Parallax 08.9" 0°57'33.8"
Geocentric Libration of Moon
Angle Value
l 4.9°
b -0.5°
c -16.3°
Prediction Paramaters
Paramater Value
Ephemerides JPL DE406
ΔT 102.8 s
k (penumbra) 0.2725076
k (umbra) 0.2722810
Saros Series 132 (49/71)

Explanation of Solar Eclipse Data Tables

Penumbral Shadow Contacts and Extremes: Annular Solar Eclipse of 2074 Jan 27

Contacts of Penumbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactP103:58:42.203:56:59.406°25.5'N036°03.1'E
First Internal ContactP206:31:06.306:29:23.559°37.4'N030°15.6'E
Last Internal ContactP306:57:10.806:55:28.070°41.0'N098°15.0'E
Last External ContactP409:29:51.409:28:08.623°49.2'N122°43.3'E
Extreme Northern and Southern Path Limits of Penumbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N106:22:17.406:20:34.663°30.1'N039°42.5'E
South Extreme Path Limit 1S105:03:26.305:01:43.515°33.1'S012°25.5'E
North Extreme Path Limit 2N207:05:54.607:04:11.871°37.8'N080°37.8'E
South Extreme Path Limit 2S208:25:08.508:23:25.701°53.1'N146°40.6'E

Explanation of Penumbral Shadow Contacts and Extremes Tables

Umbral Shadow Contacts and Extremes: Annular Solar Eclipse of 2074 Jan 27

Contacts of Umbral Shadow with Earth
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
First External ContactU105:02:58.105:01:15.315°01.9'N022°57.3'E
First Internal ContactU205:05:20.205:03:37.415°31.6'N022°32.4'E
Last Internal ContactU308:23:02.808:21:20.032°48.1'N135°30.0'E
Last External ContactU408:25:30.908:23:48.132°17.7'N135°07.5'E
Extreme Northern and Southern Path Limits of Umbra
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
North Extreme Path Limit 1N105:04:30.005:02:47.215°51.2'N022°52.0'E
South Extreme Path Limit 1S105:03:48.805:02:06.014°42.0'N022°37.6'E
North Extreme Path Limit 2N208:23:54.908:22:12.133°08.1'N135°07.3'E
South Extreme Path Limit 2S208:24:38.208:22:55.431°57.5'N135°30.2'E

Explanation of Umbral Shadow Contacts and Extremes Tables

Central Line Extremes and Duration: Annular Solar Eclipse of 2074 Jan 27

Extreme Limits of the Central Line
Contact Event Contact Time
TD
Time
UT1
Latitude Longitude
Extreme Central Line Limit 1C105:04:09.105:02:26.315°16.6'N022°44.8'E
Extreme Central Line Limit 2C208:24:16.908:22:34.132°32.7'N135°18.8'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 Eclipse06:44:15.306:42:32.506°33.8'N078°11.2'E 64.8° 171.3° 79.3 km02m21.13s
Greatest Duration08:24:16.908:22:34.132°32.7'N135°18.8'E 0.0° 248.1° 134.4 km02m21.57s

Explanation of Greatest Eclipse and Greatest Duration

Polynomial Besselian Elements: Annular Solar Eclipse of 2074 Jan 27

Polynomial Besselian Elements
2074 Jan 27 at 07:00:00.0 TD (=t0)
n x y d l1 l2 μ
0 0.07283 0.44235 -18.3395 0.55615 0.00994 281.8440
1 0.53534 0.08635 0.0106 0.00011 0.00011 14.9993
2 -0.00004 0.00010 0.0000 -0.00001 -0.00001 0.0000
3 -0.00001 -0.00000 - - - -
Tan ƒ1 0.0047487
Tan ƒ2 0.0047251

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

Links for the Annular Solar Eclipse of 2074 Jan 27

Links to Additional Solar Eclipse Information

Eclipse Predictions

Predictions for the Annular Solar Eclipse of 2074 Jan 27 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 102.8 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.