Solar eclipse of April 7, 1940


An annular solar eclipse occurred at the Moon's descending node of orbit on Sunday, April 7, 1940, with a magnitude of 0.9394. 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 2.4 days after apogee, the Moon's apparent diameter was smaller.
Annularity was visible from Gilbert and Ellice Islands, Mexico and Texas, Louisiana, Mississippi, Alabama, Georgia, Florida, and South Carolina in the United States. A partial eclipse was visible for parts of eastern Oceania, Hawaii, North America, Central America, the Caribbean, and northern South America.

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 Contact1940 April 7 at 17:17:50.2 UTC
First Umbral External Contact1940 April 7 at 18:23:22.6 UTC
First Central Line1940 April 7 at 18:26:03.9 UTC
First Umbral Internal Contact1940 April 7 at 18:28:45.3 UTC
First Penumbral Internal Contact1940 April 7 at 19:37:26.3 UTC
Ecliptic Conjunction1940 April 7 at 20:18:43.9 UTC
Greatest Eclipse1940 April 7 at 20:21:20.8 UTC
Greatest Duration1940 April 7 at 20:26:12.0 UTC
Equatorial Conjunction1940 April 7 at 20:29:05.3 UTC
Last Penumbral Internal Contact1940 April 7 at 21:05:02.9 UTC
Last Umbral Internal Contact1940 April 7 at 22:13:51.7 UTC
Last Central Line1940 April 7 at 22:16:31.8 UTC
Last Umbral External Contact1940 April 7 at 22:19:11.6 UTC
Last Penumbral External Contact1940 April 7 at 23:24:44.5 UTC

ParameterValue
Eclipse Magnitude0.93942
Eclipse Obscuration0.88252
Gamma0.21897
Sun Right Ascension01h05m52.5s
Sun Declination+07°00'32.1"
Sun Semi-Diameter15'58.2"
Sun Equatorial Horizontal Parallax08.8"
Moon Right Ascension01h05m38.8s
Moon Declination+07°11'53.1"
Moon Semi-Diameter14'47.0"
Moon Equatorial Horizontal Parallax0°54'15.4"
ΔT24.5 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.
March 23
Ascending node 		April 7
Descending node 		April 22
Ascending node
Penumbral lunar eclipse
Lunar Saros 102		Annular solar eclipse
Solar Saros 128		Penumbral lunar eclipse
Lunar Saros 140

Related eclipses

Eclipses in 1940

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 128

Inex

Triad