Solar eclipse of September 12, 1931
A partial solar eclipse occurred at the Moon's descending node of orbit on Saturday, September 12, 1931, with a magnitude of 0.0471. 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. A partial solar eclipse occurs in the polar regions of the Earth when the center of the Moon's shadow misses the Earth.
A partial eclipse was visible for parts of Alaska. This was the 72nd and final event from Solar Saros 114.
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 |
| Equatorial Conjunction | 1931 September 12 at 03:17:27.4 UTC |
| First Penumbral External Contact | 1931 September 12 at 04:13:32.8 UTC |
| Ecliptic Conjunction | 1931 September 12 at 04:26:43.8 UTC |
| Greatest Eclipse | 1931 September 12 at 04:41:24.8 UTC |
| Last Penumbral External Contact | 1931 September 12 at 05:09:49.8 UTC |
| Parameter | Value |
| Eclipse Magnitude | 0.04713 |
| Eclipse Obscuration | 0.01234 |
| Gamma | 1.50603 |
| Sun Right Ascension | 11h17m33.8s |
| Sun Declination | +04°33'58.3" |
| Sun Semi-Diameter | 15'53.5" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 11h20m30.0s |
| Moon Declination | +05°54'53.5" |
| Moon Semi-Diameter | 16'41.5" |
| Moon Equatorial Horizontal Parallax | 1°01'15.6" |
| 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.| September 12 Descending node | September 26 Ascending node | October 11 Descending node |
| Partial solar eclipse Solar Saros 114 | Total lunar eclipse Lunar Saros 126 | Partial solar eclipse Solar Saros 152 |
Related eclipses
Eclipses in 1931
- A total lunar eclipse on April 2.
- A partial solar eclipse on April 18.A partial solar eclipse on September 12.
- A total lunar eclipse on September 26.
- A partial solar eclipse on October 11.
Metonic
- Followed by: Solar eclipse of June 30, 1935
Tzolkinex
- Preceded by: Solar eclipse of July 31, 1924
Tritos
- Followed by: Solar eclipse of August 12, 1942
Solar Saros 114
- Preceded by: Solar eclipse of August 31, 1913
Triad
- Preceded by: Solar eclipse of November 10, 1844
- Followed by: Solar eclipse of July 13, 2018