Solar eclipse of January 3, 1927

{{Infobox solar eclipse|1927Jan03

| previous = Solar eclipse of July 9, 1926

| next = Solar eclipse of June 29, 1927

}}

An annular solar eclipse occurred at the Moon's descending node of orbit between Monday, January 3 and Tuesday, January 4, 1927,{{cite web|title=January 3, 1927 Annular Solar Eclipse|url=https://www.timeanddate.com/eclipse/solar/1927-january-3|publisher=timeanddate|access-date=3 August 2024}} with a magnitude of 0.9995. 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. The Moon's apparent diameter was near the average diameter because it occurred 8.6 days after apogee (on December 26, 1926, at 7:10 UTC) and 3.3 days before perigee (on January 7, 1927, at 3:00 UTC).{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=1927&n=136|publisher=timeanddate|access-date=3 August 2024}}

Annularity was visible from New Zealand on January 4 (Tuesday), and Chile, Argentina, Uruguay and southern Brazil on January 3 (Monday). A partial eclipse was visible for parts of Oceania, Antarctica, and South America.

Observations

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View of the eclipse from Buenos Aires

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 1927 Jan 03|url=https://eclipsewise.com/solar/SEprime/1901-2000/SE1927Jan03Aprime.html|publisher=EclipseWise.com|access-date=3 August 2024}}

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|+January 3, 1927 Solar Eclipse Times

! Event

! Time (UTC)

First Penumbral External Contact

| 1927 January 03 at 17:44:12.4 UTC

First Umbral External Contact

| 1927 January 03 at 18:48:36.9 UTC

First Central Line

| 1927 January 03 at 18:49:09.7 UTC

Greatest Duration

| 1927 January 03 at 18:49:09.7 UTC

First Umbral Internal Contact

| 1927 January 03 at 18:49:42.5 UTC

Greatest Eclipse

| 1927 January 03 at 20:22:53.1 UTC

Equatorial Conjunction

| 1927 January 03 at 20:23:09.7 UTC

Ecliptic Conjunction

| 1927 January 03 at 20:28:11.0 UTC

Last Umbral Internal Contact

| 1927 January 03 at 21:56:05.6 UTC

Last Central Line

| 1927 January 03 at 21:56:35.8 UTC

Last Umbral External Contact

| 1927 January 03 at 21:57:05.9 UTC

Last Penumbral External Contact

| 1927 January 03 at 23:01:27.9 UTC

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|+January 3, 1927 Solar Eclipse Parameters

! Parameter

! Value

Eclipse Magnitude

| 0.99947

Eclipse Obscuration

| 0.99894

Gamma

| −0.49559

Sun Right Ascension

| 18h54m14.6s

Sun Declination

| -22°51'45.8"

Sun Semi-Diameter

| 16'15.9"

Sun Equatorial Horizontal Parallax

| 08.9"

Moon Right Ascension

| 18h54m13.9s

Moon Declination

| -23°20'50.4"

Moon Semi-Diameter

| 16'01.7"

Moon Equatorial Horizontal Parallax

| 0°58'49.4"

ΔT

| 24.5 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 December 1926–January 1927

! December 19
Ascending node (full moon) !! January 3
Descending node (new moon)

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| Penumbral lunar eclipse
Lunar Saros 114

Annular solar eclipse
Solar Saros 140