Solar eclipse of August 1, 1943

{{Infobox solar eclipse|1943Aug01

| previous = Solar eclipse of February 4, 1943

| next = Solar eclipse of January 25, 1944

}}

An annular solar eclipse occurred at the Moon's ascending node of orbit on Sunday, August 1, 1943,{{cite web|title=August 1, 1943 Annular Solar Eclipse|url=https://www.timeanddate.com/eclipse/solar/1943-august-1|publisher=timeanddate|access-date=4 August 2024}} with a magnitude of 0.9409. 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 (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. Occurring about 25 minutes before apogee (on August 1, 1943, at 4:40 UTC), the Moon's apparent diameter was near its minimum.{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=1943&n=136|publisher=timeanddate|access-date=4 August 2024}} Apogee did occur as the eclipse was just before its greatest eclipse.

Annularity was visible in the southern Indian Ocean, with the only land being Île Amsterdam in French Madagascar (now belonging to French Southern and Antarctic Lands). A partial solar eclipse was visible from Australia, Indonesia, Malaysia, eastern Madagascar, Antarctica's Wilkes Land.

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.{{cite web|title=Annular Solar Eclipse of 1943 Aug 01|url=https://eclipsewise.com/solar/SEprime/1901-2000/SE1943Aug01Aprime.html|publisher=EclipseWise.com|access-date=4 August 2024}}

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|+August 1, 1943 Solar Eclipse Times

! Event

! Time (UTC)

First Penumbral External Contact

| 1943 August 01 at 01:36:43.5 UTC

First Umbral External Contact

| 1943 August 01 at 03:02:00.9 UTC

First Central Line

| 1943 August 01 at 03:05:56.2 UTC

First Umbral Internal Contact

| 1943 August 01 at 03:10:00.5 UTC

Ecliptic Conjunction

| 1943 August 01 at 04:06:41.0 UTC

Greatest Duration

| 1943 August 01 at 04:13:30.8 UTC

Greatest Eclipse

| 1943 August 01 at 04:16:13.0 UTC

Equatorial Conjunction

| 1943 August 01 at 04:31:47.4 UTC

Last Umbral Internal Contact

| 1943 August 01 at 05:22:14.2 UTC

Last Central Line

| 1943 August 01 at 05:26:18.8 UTC

Last Umbral External Contact

| 1943 August 01 at 05:30:14.3 UTC

Last Penumbral External Contact

| 1943 August 01 at 06:55:35.4 UTC

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|+August 1, 1943 Solar Eclipse Parameters

! Parameter

! Value

Eclipse Magnitude

| 0.94090

Eclipse Obscuration

| 0.88530

Gamma

| −0.80410

Sun Right Ascension

| 08h41m53.3s

Sun Declination

| +18°15'27.8"

Sun Semi-Diameter

| 15'45.5"

Sun Equatorial Horizontal Parallax

| 08.7"

Moon Right Ascension

| 08h41m24.1s

Moon Declination

| +17°32'46.0"

Moon Semi-Diameter

| 14'41.9"

Moon Equatorial Horizontal Parallax

| 0°53'56.6"

ΔT

| 26.0 s

Eclipse season

This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two (or occasionally three) eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months (173 days) 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.

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|+ Eclipse season of August 1943

! August 1
Ascending node (new moon) !! August 15
Descending node (full moon)

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| Annular solar eclipse
Solar Saros 125

Partial lunar eclipse
Lunar Saros 137