Solar eclipse of September 11, 1969


An annular solar eclipse occurred at the Moon's descending node of orbit on Thursday, September 11, 1969, with a magnitude of 0.969. 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 5.2 days after apogee, the Moon's apparent diameter was smaller.
Annularity was visible from the Pacific Ocean, Peru, Bolivia and the southwestern tip of Brazilian state Mato Grosso. A partial eclipse was visible for parts of North America, Central America, the Caribbean, and western South America. Places west of the International Date Line witnessed the eclipse on Friday, September 12, 1969.

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 Contact1969 September 11 at 17:02:10.6 UTC
First Umbral External Contact1969 September 11 at 18:05:48.3 UTC
First Central Line1969 September 11 at 18:07:22.6 UTC
First Umbral Internal Contact1969 September 11 at 18:08:57.1 UTC
Greatest Duration1969 September 11 at 18:58:29.1 UTC
First Penumbral Internal Contact1969 September 11 at 19:15:35.4 UTC
Equatorial Conjunction1969 September 11 at 19:45:07.4 UTC
Ecliptic Conjunction1969 September 11 at 19:56:27.0 UTC
Greatest Eclipse1969 September 11 at 19:58:58.7 UTC
Last Penumbral Internal Contact1969 September 11 at 20:42:42.5 UTC
Last Umbral Internal Contact1969 September 11 at 21:49:10.9 UTC
Last Central Line1969 September 11 at 21:50:42.6 UTC
Last Umbral External Contact1969 September 11 at 21:52:14.2 UTC
Last Penumbral External Contact1969 September 11 at 22:55:46.4 UTC

ParameterValue
Eclipse Magnitude0.96904
Eclipse Obscuration0.93904
Gamma0.22014
Sun Right Ascension11h19m09.2s
Sun Declination+04°23'48.2"
Sun Semi-Diameter15'53.5"
Sun Equatorial Horizontal Parallax08.7"
Moon Right Ascension11h19m32.8s
Moon Declination+04°34'30.9"
Moon Semi-Diameter15'10.1"
Moon Equatorial Horizontal Parallax0°55'40.1"
ΔT39.9 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.
August 27
Ascending node
September 11
Descending node
September 25
Ascending node
Penumbral lunar eclipse
Lunar Saros 108		Annular solar eclipse
Solar Saros 134		Penumbral lunar eclipse
Lunar Saros 146

Related eclipses

Eclipses in 1969

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 134

Inex

Triad