Solar eclipse of May 18, 1920
A partial solar eclipse occurred at the Moon's descending node of orbit on Tuesday, May 18, 1920, with a magnitude of 0.9734. 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 Australia and Antarctica.
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 | 1920 May 18 at 04:17:02.5 UTC |
| Equatorial Conjunction | 1920 May 18 at 06:00:25.5 UTC |
| Greatest Eclipse | 1920 May 18 at 06:14:55.0 UTC |
| Ecliptic Conjunction | 1920 May 18 at 06:25:08.5 UTC |
| Last Penumbral External Contact | 1920 May 18 at 08:12:51.9 UTC |
| Parameter | Value |
| Eclipse Magnitude | 0.97341 |
| Eclipse Obscuration | 0.97587 |
| Gamma | −1.02391 |
| Sun Right Ascension | 03h38m46.6s |
| Sun Declination | +19°29'30.0" |
| Sun Semi-Diameter | 15'48.4" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 03h39m22.1s |
| Moon Declination | +18°27'48.5" |
| Moon Semi-Diameter | 16'36.5" |
| Moon Equatorial Horizontal Parallax | 1°00'57.1" |
| ΔT | 21.6 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.| May 3 Ascending node | May 18 Descending node |
| Total lunar eclipse Lunar Saros 120 | Partial solar eclipse Solar Saros 146 |
Related eclipses
Eclipses in 1920
- A total lunar eclipse on May 3.A partial solar eclipse on May 18.
- A total lunar eclipse on October 27.
- A partial solar eclipse on November 10.
Metonic
- Preceded by: Solar eclipse of July 30, 1916
- Followed by: Solar eclipse of March 5, 1924
Tzolkinex
- Preceded by: Solar eclipse of April 6, 1913
- Followed by: Solar eclipse of June 29, 1927
Half-Saros
- Preceded by: Lunar eclipse of May 13, 1911
- Followed by: Lunar eclipse of May 23, 1929
Tritos
- Preceded by: Solar eclipse of June 17, 1909
- Followed by: Solar eclipse of April 18, 1931
Solar Saros 146
- Preceded by: Solar eclipse of May 7, 1902
- Followed by: Solar eclipse of May 29, 1938
Inex
- Preceded by: Solar eclipse of June 6, 1891
- Followed by: Solar eclipse of April 28, 1949
Triad
- Preceded by: Solar eclipse of July 17, 1833
- Followed by: Solar eclipse of March 19, 2007