Solar eclipse of December 12, 1909
A partial solar eclipse occurred at the Moon's descending node of orbit on Sunday, December 12, 1909, with a magnitude of 0.5424. 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.
This event was visible as a partial solar eclipse across Antarctica and New Zealand.
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 | 1909 December 12 at 17:56:19.6 UTC |
| Greatest Eclipse | 1909 December 12 at 19:44:48.1 UTC |
| Ecliptic Conjunction | 1909 December 12 at 19:58:40.0 UTC |
| Equatorial Conjunction | 1909 December 12 at 20:09:23.5 UTC |
| Last Penumbral External Contact | 1909 December 12 at 21:33:01.1 UTC |
| Parameter | Value |
| Eclipse Magnitude | 0.54243 |
| Eclipse Obscuration | 0.42921 |
| Gamma | –1.24559 |
| Sun Right Ascension | 17h17m14.6s |
| Sun Declination | -23°05'16.7" |
| Sun Semi-Diameter | 16'14.8" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 17h16m22.9s |
| Moon Declination | -24°13'34.7" |
| Moon Semi-Diameter | 15'12.2" |
| Moon Equatorial Horizontal Parallax | 0°55'47.8" |
| ΔT | 10.4 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 27 Ascending node | December 12 Descending node |
| Penumbral lunar eclipse Lunar Saros 124 | Annular solar eclipse Solar Saros 150 |
Related eclipses
Eclipses in 1909
- A total lunar eclipse on June 4.
- A hybrid solar eclipse on June 17.
- A total lunar eclipse on November 27.
- '''A partial solar eclipse on December 12.'''
Metonic
- Preceded by: Solar eclipse of February 23, 1906
- Followed by: Solar eclipse of September 30, 1913
Tzolkinex
- Preceded by: Solar eclipse of October 31, 1902
- Followed by: Solar eclipse of January 23, 1917
Half-Saros
- Preceded by: Lunar eclipse of December 6, 1900
- Followed by: Lunar eclipse of December 17, 1918
Tritos
- Preceded by: Solar eclipse of January 11, 1899
- Followed by: Solar eclipse of November 10, 1920
Solar Saros 150
- Preceded by: Solar eclipse of December 1, 1891
- Followed by: Solar eclipse of December 24, 1927
Inex
- Preceded by: Solar eclipse of December 31, 1880
- Followed by: Solar eclipse of November 21, 1938
Triad
- Preceded by: Solar eclipse of February 11, 1823
- Followed by: Solar eclipse of October 12, 1996