Solar eclipse of December 13, 1974
A partial solar eclipse occurred at the Moon's ascending node of orbit on Friday, December 13, 1974, with a magnitude of 0.8266. 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 North America, the Caribbean, extreme northern South America, and the Iberian Peninsula.
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 | 1974 December 13 at 14:03:46.5 UTC |
| Greatest Eclipse | 1974 December 13 at 16:13:13.1 UTC |
| Equatorial Conjunction | 1974 December 13 at 16:17:20.5 UTC |
| Ecliptic Conjunction | 1974 December 13 at 16:25:30.1 UTC |
| Last Penumbral External Contact | 1974 December 13 at 18:22:43.5 UTC |
| Parameter | Value |
| Eclipse Magnitude | 0.82664 |
| Eclipse Obscuration | 0.76006 |
| Gamma | 1.07974 |
| Sun Right Ascension | 17h22m00.7s |
| Sun Declination | -23°09'15.3" |
| Sun Semi-Diameter | 16'14.8" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 17h21m52.0s |
| Moon Declination | -22°09'07.8" |
| Moon Semi-Diameter | 15'13.3" |
| Moon Equatorial Horizontal Parallax | 0°55'51.8" |
| ΔT | 45.4 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.| November 29 Descending node | December 13 Ascending node |
| Total lunar eclipse Lunar Saros 125 | Partial solar eclipse Solar Saros 151 |
Related eclipses
Eclipses in 1974
- A partial lunar eclipse on June 4.
- A total solar eclipse on June 20.
- A total lunar eclipse on November 29.
- '''A partial solar eclipse on December 13.'''
Metonic
- Preceded by: Solar eclipse of February 25, 1971
- Followed by: Solar eclipse of October 2, 1978
Tzolkinex
- Preceded by: Solar eclipse of November 2, 1967
- Followed by: Solar eclipse of January 25, 1982
Half-Saros
- Preceded by: Lunar eclipse of December 8, 1965
- Followed by: Lunar eclipse of December 20, 1983
Tritos
- Preceded by: Solar eclipse of January 14, 1964
- Followed by: Solar eclipse of November 12, 1985
Solar Saros 151
- Preceded by: Solar eclipse of December 2, 1956
- Followed by: Solar eclipse of December 24, 1992
Inex
- Preceded by: Solar eclipse of January 3, 1946
- Followed by: Solar eclipse of November 23, 2003
Triad
- Preceded by: Solar eclipse of February 11, 1888
- Followed by: Solar eclipse of October 13, 2061