Solar eclipse of August 10, 1980


An annular solar eclipse occurred at the Moon's ascending node of orbit on Sunday, August 10, 1980, with a magnitude of 0.9727. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus. An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. Occurring about 5 days before apogee, the Moon's apparent diameter was smaller.
Annularity was visible in Tabuaeran of Kiribati, Peru, Bolivia, northern Paraguay and Brazil. The whole path of annularity was east of the 180th meridian, seeing the eclipse on August 10.
A partial eclipse was visible for parts of eastern Oceania, Hawaii, the southern United States, Mexico, Central America, the Caribbean, and South America. Most of these areas are east of the 180th meridian, seeing the eclipse on August 10, while very few islands in the Pacific Ocean are west of the 180th meridian, seeing the eclipse on August 11.

Eclipse details

Shown below are two tables displaying details about this particular solar eclipse. The first table outlines times at which the Moon's penumbra or umbra attains the specific parameter, and the second table describes various other parameters pertaining to this eclipse.
EventTime
First Penumbral External Contact1980 August 10 at 16:14:41.9 UTC
First Umbral External Contact1980 August 10 at 17:18:11.1 UTC
First Central Line1980 August 10 at 17:19:35.0 UTC
First Umbral Internal Contact1980 August 10 at 17:20:59.0 UTC
First Penumbral Internal Contact1980 August 10 at 18:26:38.7 UTC
Greatest Duration1980 August 10 at 19:04:16.8 UTC
Ecliptic Conjunction1980 August 10 at 19:10:08.9 UTC
Greatest Eclipse1980 August 10 at 19:12:21.1 UTC
Equatorial Conjunction1980 August 10 at 19:17:07.0 UTC
Last Penumbral Internal Contact1980 August 10 at 19:57:54.5 UTC
Last Umbral Internal Contact1980 August 10 at 21:03:37.7 UTC
Last Central Line1980 August 10 at 21:05:04.4 UTC
Last Umbral External Contact1980 August 10 at 21:06:31.0 UTC
Last Penumbral External Contact1980 August 10 at 22:10:03.9 UTC

ParameterValue
Eclipse Magnitude0.97267
Eclipse Obscuration0.94609
Gamma−0.19154
Sun Right Ascension09h22m51.8s
Sun Declination+15°21'02.2"
Sun Semi-Diameter15'46.9"
Sun Equatorial Horizontal Parallax08.7"
Moon Right Ascension09h22m42.5s
Moon Declination+15°10'40.6"
Moon Semi-Diameter15'07.1"
Moon Equatorial Horizontal Parallax0°55'29.1"
ΔT51.0 s

Eclipse season

This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months later; thus two full eclipse seasons always occur each year. Either two or three eclipses happen each eclipse season. In the sequence below, each eclipse is separated by a fortnight. The first and last eclipse in this sequence is separated by one synodic month.
July 27
Descending node
August 10
Ascending node
August 26
Descending node
Penumbral lunar eclipse
Lunar Saros 109		Annular solar eclipse
Solar Saros 135		Penumbral lunar eclipse
Lunar Saros 147

Related eclipses

Eclipses in 1980

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 135

Inex

Triad