Solar eclipse of August 21, 1933
An annular solar eclipse occurred at the Moon's descending node of orbit on Monday, August 21, 1933, with a magnitude of 0.9801. 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 only 5.6 days after apogee, the Moon's apparent diameter was smaller.
Annularity was visible from a small tip of northeastern Italian Libya, Egypt, Mandatory Palestine including Jerusalem and Amman, French Mandate for Syria and the Lebanon, Iraq including Baghdad, Persia, Afghanistan, British Raj, Siam, Dutch East Indies, Raj of Sarawak, and Australia. A partial eclipse was visible for parts of Northeast Africa, Eastern Europe, Asia, and Australia.
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.| Event | Time |
| First Penumbral External Contact | 1933 August 21 at 02:52:30.3 UTC |
| First Umbral External Contact | 1933 August 21 at 03:54:48.4 UTC |
| First Central Line | 1933 August 21 at 03:55:58.9 UTC |
| Greatest Duration | 1933 August 21 at 03:55:58.9 UTC |
| First Umbral Internal Contact | 1933 August 21 at 03:57:09.4 UTC |
| First Penumbral Internal Contact | 1933 August 21 at 04:59:51.0 UTC |
| Equatorial Conjunction | 1933 August 21 at 05:44:23.7 UTC |
| Ecliptic Conjunction | 1933 August 21 at 05:48:11.5 UTC |
| Greatest Eclipse | 1933 August 21 at 05:49:10.9 UTC |
| Last Penumbral Internal Contact | 1933 August 21 at 06:38:38.7 UTC |
| Last Umbral Internal Contact | 1933 August 21 at 07:41:17.5 UTC |
| Last Central Line | 1933 August 21 at 07:42:25.2 UTC |
| Last Umbral External Contact | 1933 August 21 at 07:43:32.9 UTC |
| Last Penumbral External Contact | 1933 August 21 at 08:45:47.4 UTC |
| Parameter | Value |
| Eclipse Magnitude | 0.98011 |
| Eclipse Obscuration | 0.96062 |
| Gamma | 0.08688 |
| Sun Right Ascension | 09h59m34.9s |
| Sun Declination | +12°16'29.3" |
| Sun Semi-Diameter | 15'48.7" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 09h59m43.6s |
| Moon Declination | +12°20'51.3" |
| Moon Semi-Diameter | 15'15.5" |
| Moon Equatorial Horizontal Parallax | 0°55'59.9" |
| ΔT | 23.9 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.| August 5 Ascending node | August 21 Descending node | September 4 Ascending node |
| Penumbral lunar eclipse Lunar Saros 108 | Annular solar eclipse Solar Saros 134 | Penumbral lunar eclipse Lunar Saros 146 |
Related eclipses
Eclipses in 1933
- A penumbral lunar eclipse on February 10.
- An annular solar eclipse on February 24.
- A penumbral lunar eclipse on March 12.
- A penumbral lunar eclipse on August 5.An annular solar eclipse on August 21.
- A penumbral lunar eclipse on September 4.
Metonic
- Preceded by: Solar eclipse of November 1, 1929
- Followed by: Solar eclipse of June 8, 1937
Tzolkinex
- Preceded by: Solar eclipse of July 9, 1926
- Followed by: Solar eclipse of October 1, 1940
Half-Saros
- Preceded by: Lunar eclipse of August 14, 1924
- Followed by: Lunar eclipse of August 26, 1942
Tritos
- Preceded by: Solar eclipse of September 21, 1922
- Followed by: Solar eclipse of July 20, 1944
Solar Saros 134
- Preceded by: Solar eclipse of August 10, 1915
- Followed by: Solar eclipse of September 1, 1951
Inex
- Preceded by: Solar eclipse of September 9, 1904
- Followed by: Solar eclipse of July 31, 1962
Triad
- Preceded by: Solar eclipse of October 20, 1846
- Followed by: Solar eclipse of June 21, 2020