Solar eclipse of February 24, 1933

{{short description|20th-century annular solar eclipse}}

{{Infobox solar eclipse|1933Feb24

| previous = Solar eclipse of August 31, 1932

| next = Solar eclipse of August 21, 1933

}}

An annular solar eclipse occurred at the Moon's ascending node of orbit on Friday, February 24, 1933,{{cite web|title=February 24, 1933 Annular Solar Eclipse|url=https://www.timeanddate.com/eclipse/solar/1933-february-24|publisher=timeanddate|access-date=3 August 2024}} with a magnitude of 0.9841. 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). The Moon's apparent diameter was near the average diameter because it occurred 6.1 days after perigee (on February 18, 1933, at 10:50 UTC) and 7.25 days before apogee (on March 3, 1933, at 18:10 UTC).{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=1933&n=136|publisher=timeanddate|access-date=3 August 2024}}

Annularity was visible from Chile, Argentina, Portuguese Angola (today's Angola), French Equatorial Africa (parts now belonging to R. Congo and Central African Republic), Belgian Congo (today's DR Congo), Anglo-Egyptian Sudan (parts now belonging to South Sudan and Sudan), Ethiopia, French Somaliland (today's Djibouti), southeastern Italian Eritrea (today's Eritrea), and Mutawakkilite Kingdom of Yemen, Aden Protectorate and Aden Province in British Raj (now belonging to Yemen). A partial eclipse was visible for parts of southern and central South America, Antarctica, Africa, and the Middle East.

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 1933 Feb 24|url=https://eclipsewise.com/solar/SEprime/1901-2000/SE1933Feb24Aprime.html|publisher=EclipseWise.com|access-date=3 August 2024}}

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|+February 24, 1933 Solar Eclipse Times

! Event

! Time (UTC)

First Penumbral External Contact

| 1933 February 24 at 09:56:13.4 UTC

First Umbral External Contact

| 1933 February 24 at 10:57:42.3 UTC

First Central Line

| 1933 February 24 at 10:58:41.9 UTC

First Umbral Internal Contact

| 1933 February 24 at 10:59:41.6 UTC

First Penumbral Internal Contact

| 1933 February 24 at 12:04:02.5 UTC

Equatorial Conjunction

| 1933 February 24 at 12:34:09.6 UTC

Ecliptic Conjunction

| 1933 February 24 at 12:44:13.6 UTC

Greatest Eclipse

| 1933 February 24 at 12:46:39.0 UTC

Last Penumbral Internal Contact

| 1933 February 24 at 13:29:31.9 UTC

Last Umbral Internal Contact

| 1933 February 24 at 14:33:42.2 UTC

Greatest Duration

| 1933 February 24 at 14:34:44.6 UTC

Last Central Line

| 1933 February 24 at 14:34:44.6 UTC

Last Umbral External Contact

| 1933 February 24 at 14:35:47.1 UTC

Last Penumbral External Contact

| 1933 February 24 at 15:37:16.0 UTC

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|+February 24, 1933 Solar Eclipse Parameters

! Parameter

! Value

Eclipse Magnitude

| 0.98411

Eclipse Obscuration

| 0.96847

Gamma

| −0.21909

Sun Right Ascension

| 22h29m09.4s

Sun Declination

| -09°30'27.0"

Sun Semi-Diameter

| 16'09.4"

Sun Equatorial Horizontal Parallax

| 08.9"

Moon Right Ascension

| 22h29m32.7s

Moon Declination

| -09°41'36.6"

Moon Semi-Diameter

| 15'39.2"

Moon Equatorial Horizontal Parallax

| 0°57'26.7"

ΔT

| 23.9 s

{{clear}}

Eclipse season

{{See also|Eclipse cycle}}

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. The first and last eclipse in this sequence is separated by one synodic month.

class="wikitable"

|+ Eclipse season of February–March 1933

! February 10
Descending node (full moon)

February 24
Ascending node (new moon)
March 12
Descending node (full moon)
200px200px200px
align=center

| Penumbral lunar eclipse
Lunar Saros 103

Annular solar eclipse
Solar Saros 129
Penumbral lunar eclipse
Lunar Saros 141

Related eclipses

= Eclipses in 1933 =

= Metonic =

= Tzolkinex =

= Half-Saros =

= Tritos =

= Solar Saros 129 =

= Inex =

= Triad =

= Solar eclipses of 1931–1935 =

{{Solar eclipse set 1931–1935}}

= Saros 129 =

{{Solar Saros series 129}}

= Metonic series =

{{Solar Metonic series 1898–1982}}

= Tritos series =

{{Solar Tritos series 2009 July 22}}

= Inex series =

{{Solar Inex series 2019 December 26}}

Notes

{{reflist}}

References

{{Solar eclipse NASA reference|1901/SE1933Feb24A|19330224}}

{{Solar eclipses}}

1933 2 24

Category:1933 in science

1933 2 24

Category:February 1933