Solar eclipse of December 25, 1954
An annular solar eclipse occurred at the Moon's ascending node of orbit on Saturday, December 25, 1954, with a magnitude of 0.9323. It was the first solar eclipse to fall on Christmas since 1935, and the last until 2000. 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 kilometers wide. Occurring about 4.9 days after apogee, the Moon's apparent diameter was smaller.
Annularity was visible from the southwestern tip of South West Africa, Union of South Africa, Ashmore and Cartier Islands except Cartier Island, Indonesia and Portuguese Timor. A partial eclipse was visible for parts of Southern Africa, Antarctica, Southeast 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 | 1954 December 25 at 04:35:22.0 UTC |
| First Umbral External Contact | 1954 December 25 at 05:40:42.2 UTC |
| First Central Line | 1954 December 25 at 05:43:40.3 UTC |
| First Umbral Internal Contact | 1954 December 25 at 05:46:38.6 UTC |
| First Penumbral Internal Contact | 1954 December 25 at 06:56:43.3 UTC |
| Greatest Duration | 1954 December 25 at 07:29:49.2 UTC |
| Equatorial Conjunction | 1954 December 25 at 07:32:58.2 UTC |
| Ecliptic Conjunction | 1954 December 25 at 07:33:39.3 UTC |
| Greatest Eclipse | 1954 December 25 at 07:36:42.4 UTC |
| Last Penumbral Internal Contact | 1954 December 25 at 08:16:48.3 UTC |
| Last Umbral Internal Contact | 1954 December 25 at 09:26:50.4 UTC |
| Last Central Line | 1954 December 25 at 09:29:46.5 UTC |
| Last Umbral External Contact | 1954 December 25 at 09:32:42.2 UTC |
| Last Penumbral External Contact | 1954 December 25 at 10:37:59.4 UTC |
| Parameter | Value |
| Eclipse Magnitude | 0.93233 |
| Eclipse Obscuration | 0.86925 |
| Gamma | −0.25762 |
| Sun Right Ascension | 18h12m59.7s |
| Sun Declination | -23°24'41.6" |
| Sun Semi-Diameter | 16'15.7" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 18h13m07.2s |
| Moon Declination | -23°38'40.4" |
| Moon Semi-Diameter | 14'56.4" |
| Moon Equatorial Horizontal Parallax | 0°54'49.7" |
| ΔT | 31.1 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.| December 25 Ascending node | January 8 Descending node |
| Annular solar eclipse Solar Saros 131 | Penumbral lunar eclipse Lunar Saros 143 |
Related eclipses
Eclipses in 1954
- An annular solar eclipse on January 5.
- A total lunar eclipse on January 19.
- A total solar eclipse on June 30.
- A partial lunar eclipse on July 16.
- '''An annular solar eclipse on December 25.'''
Metonic
- Preceded by: Solar eclipse of March 7, 1951
- Followed by: Solar eclipse of October 12, 1958
Tzolkinex
- Preceded by: Solar eclipse of November 12, 1947
- Followed by: Solar eclipse of February 5, 1962
Half-Saros
- Preceded by: Lunar eclipse of December 19, 1945
- Followed by: Lunar eclipse of December 30, 1963
Tritos
- Preceded by: Solar eclipse of January 25, 1944
- Followed by: Solar eclipse of November 23, 1965
Solar Saros 131
- Preceded by: Solar eclipse of December 13, 1936
- Followed by: Solar eclipse of January 4, 1973
Inex
- Preceded by: Solar eclipse of January 14, 1926
- Followed by: Solar eclipse of December 4, 1983
Triad
- Preceded by: Solar eclipse of February 23, 1868
- Followed by: Solar eclipse of October 25, 2041