An annular eclipse of the Sun occurred on Wednesday 30 May, 1984 UT, lasting from 13:54–19:35 UT. A large annular eclipse covered over 99% of the Sun, creating a dramatic spectacle for observers in only a tiny path, just 7 km wide; it lasted a brief 11 seconds at the point of maximum eclipse. It was seen across northern Mexico, the south-eastern United States, the Azores, Morocco, and Algeria. The partial eclipse was visible from North America, western Europe, and north-west Africa.

The timings of the phases of the overall eclipse worldwide are as follows. In any particular place it would have been seen for a significantly shorter duration as the shadow moved across the Earth:

Partial eclipse began: 13:54:21 UT
Annular eclipse began: 14:56:54 UT
Maximum eclipse: 16:44:48 UT
Annular eclipse ended: 18:32:34 UT
Partial eclipse ended: 19:35:06 UT

During this eclipse the Sun was 0.526° in apparent diameter, 1.4% smaller than average. The Moon was 6 days after apogee and 8 days before perigee. At maximum eclipse it was 0.525° in apparent diameter, which is 1.2% smaller than average; this was not large enough to cover the Sun, which is why this was an annular eclipse. The statistics page has information on the ranges of the sizes of the Sun and Moon.

The Annular Eclipse

Mexico

The annular eclipse began in the Pacific, and then reached land at Jalisco in Mexico at 15:26 UT. At this point the annular eclipse lasted 36 seconds, and was visible from a path 30 km (18.6 miles) wide. The path of the eclipse passed close to Guadalajara and over San Luis Potosi and Ciudad Victoria, then reached the Gulf of Mexico at Laguna Madre at 15:44 UT. With the eclipse getting closer to maximum, the duration was down to 26 seconds and the path width 20 km (12.4 miles).

USA

The annular eclipse reached the US mainland in Louisiana at 16:02 UT, with the path width down to 14 km (8.7 miles) and the duration just 19 seconds. It then crossed southern Mississippi, Alabama, Georgia, South Carolina, North Carolina, Virginia, the Chesapeake, and the south-east corner of Maryland. The point of greatest eclipse (which, for an annular eclipse, is the point of shortest duration) was on the York River, where the duration was just 11 seconds in the centre of a path just 7 km (4.3 miles) wide.

Azores

The path of the annular eclipse clipped the island of Corvo at 18:11 UT, then passed over Graciosa at 18:14 UT. The north of the island was fairly close to the centreline, where the duration was up to 38 seconds. The north coast of Terceira saw a brief annular eclipse at 18:15 UT.

Africa

The annular eclipse reached land again in Morocco at 18:29 UT, with the path width now up to 52 km (32.3 miles) and the duration 51 seconds on the centreline. The path of the annular eclipse crossed Morocco south-east into Algeria, where it ended north of Ain Salah minutes later.

The Partial Eclipse

The Americas

The partial eclipse was visible over all of North America except the Yukon and Alaska. A 60% eclipse was seen south-east of Arizona, Colorado, Nebraska, Minnesota, and central Ontario and Quebec, and north-west of Honduras and Cuba. The eastern and south-eastern US, from Texas to Maine, enjoyed an 80% eclipse, as did most of Mexico and Florida. Maximum eclipse was around 15:30 UT in western Mexico and 17:30 UT in maritime Canada.

Europe

Western Europe saw the partial eclipse in the afternoon and evening, with the greatest eclipse seen in the south. North-West Scotland saw a 40% eclipse with maximum around 18:00 UT; southern England saw an eclipse of 45% - 55% just a few minutes later. At the University of Kent in Canterbury, for example, 47.7% of the Sun's diameter was covered by the Moon at maximum eclipse, which occurred at 18:09:02 UT. The partial eclipse lasted from 17:15–19:00 UT; the Sun set at 20:00 UT.

A 60% eclipse was seen south of central France, but farther east the sun set during the eclipse.

Interactive Map

This map shows the visibility of the eclipse. The shaded area saw the annular solar eclipse; however, near the edges of this area, the eclipse was very short. The bold line shows the centre of the path, where the eclipse lasted longest.

Use the zoom controls to zoom in and out; hover your mouse over any point on the centreline to see the time and duration of the eclipse at that point. You can pan and zoom the map to see detail for any part of the eclipse path.

Overview Map

This map sourced from NASA's Eclipse Web Site shows the visibility of the annular solar eclipse. It also shows the broader area in which a partial eclipse was seen. (Click on it for the full-sized version.)

Eclipse Season and Saros Series

This eclipse season contains 3 eclipses:

This was the 34th eclipse in solar Saros series 137.The surrounding eclipses in this Saros series are:

Eclipse Parameters

UT Date/time (max) 16:44:47 on 30 May UT TDT Date/time (max) 16:45:41 on 30 May TDT
Saros Series 137 Number in Series 33
Penumbral Magnitiude Central Magnitiude 0.998
Gamma 0.2755 Path Width (km) 7
Delta T 0m54s Error ± 0m00s (95%)
Penumbral Duration Partial Duration
Total Duration 0m11s
Partial Rating Total Rating
Sun Distance 151686627 km (95.0%) Moon Distance 385367 km (57.6%)
Sun Diameter 0.526° Moon Diameter 0.517° - 0.525°
Apogee 00:59 on 24 May UT Perigee 11:15 on 7 Jun UT
Contact p1 13:54:21 on 30 May UT Contact p2
Contact u1 14:56:54 on 30 May UT Contact u2 14:58:05 on 30 May UT
Max eclipse 16:44:48 on 30 May UT
Contact u3 18:31:29 on 30 May UT Contact u4 18:32:34 on 30 May UT
Contact p3 Contact p4 19:35:06 on 30 May UT

Note that while all dates and times on this site (except where noted) are in UT, which is within a second of civil time, the dates and times shown in NASA's eclipse listings are in the TDT timescale.

The Sun and Moon distances are shown in km, and as a percentage of their minimum - maximum distances; hence 0% is the closest possible (Earth's perihelion, or the Moon's closest possible perigee) and 100% is the farthest (aphelion, the farthest apogee). The statistics page has information on the ranges of sizes of the Sun and Moon.

Data last updated: 2015-06-21 22:11:46 UTC.