An annular solar eclipse occurred at the Moon's ascending node of orbit on Friday, February 24, 1933,[1] 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).[2]
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.
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.[3]
| 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 |
| 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 |
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.
| February 24 Ascending node (new moon) | March 12 Descending node (full moon) | ||
| Penumbral lunar eclipse Lunar Saros 103 | Annular solar eclipse Solar Saros 129 | Penumbral lunar eclipse Lunar Saros 141 |