Solar eclipse of May 11, 2078
A total solar eclipse will occur at the Moon's ascending node of orbit on Wednesday, May 11, 2078, with a magnitude of 1.0701. 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 total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. Occurring about 16 hours after perigee, the Moon's apparent diameter will be larger.
The path of totality will be visible from parts of Kiribati, Mexico, Texas, Louisiana, Mississippi, Alabama, the western Florida panhandle, Georgia, South Carolina, North Carolina, and Virginia, in the United States, and the eastern Canary Islands. A partial solar eclipse will also be visible for parts of Oceania, North America, Central America, the Caribbean, northern South America, Western Europe, and Northwest Africa.
Path description
The path of totality will begin over the Pacific Ocean near Caroline Island, Kiribati. From there, it will track northeast towards North America, making landfall on the Mexican coast. In Mexico, totality will be visible in the cities of Manzanillo, Guadalajara, Aguascalientes, Zacatecas, San Luis Potosí, Ciudad Victoria, and Matamoros, Tamaulipas. The path then briefly crosses into the United States in southern Texas, including McAllen and Brownsville before crossing the Gulf of Mexico. It then re-enters the United States, passing through Louisiana, Mississippi, Alabama, far northwestern Florida, Georgia, South Carolina, North Carolina, and Virginia. It then passes over the Atlantic Ocean and ends near the Canary Islands.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 | 2078 May 11 at 15:20:00.9 UTC |
| First Umbral External Contact | 2078 May 11 at 16:14:08.4 UTC |
| First Central Line | 2078 May 11 at 16:15:33.1 UTC |
| First Umbral Internal Contact | 2078 May 11 at 16:16:57.9 UTC |
| First Penumbral Internal Contact | 2078 May 11 at 17:12:36.4 UTC |
| Greatest Eclipse | 2078 May 11 at 17:56:54.8 UTC |
| Ecliptic Conjunction | 2078 May 11 at 17:58:47.4 UTC |
| Greatest Duration | 2078 May 11 at 18:02:17.5 UTC |
| Equatorial Conjunction | 2078 May 11 at 18:04:05.9 UTC |
| Last Penumbral Internal Contact | 2078 May 11 at 18:41:03.0 UTC |
| Last Umbral Internal Contact | 2078 May 11 at 19:36:48.0 UTC |
| Last Central Line | 2078 May 11 at 19:38:12.0 UTC |
| Last Umbral External Contact | 2078 May 11 at 19:39:36.1 UTC |
| Last Penumbral External Contact | 2078 May 11 at 20:33:47.3 UTC |
| Parameter | Value |
| Eclipse Magnitude | 1.07012 |
| Eclipse Obscuration | 1.14516 |
| Gamma | 0.18380 |
| Sun Right Ascension | 03h16m09.4s |
| Sun Declination | +18°07'17.6" |
| Sun Semi-Diameter | 15'50.2" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 03h15m52.6s |
| Moon Declination | +18°17'46.7" |
| Moon Semi-Diameter | 16'39.9" |
| Moon Equatorial Horizontal Parallax | 1°01'09.6" |
| ΔT | 104.1 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.| April 27 Descending node | May 11 Ascending node |
| Penumbral lunar eclipse Lunar Saros 113 | Total solar eclipse Solar Saros 139 |
Related eclipses
Eclipses in 2078
- A penumbral lunar eclipse on April 27.A total solar eclipse on May 11.
- A penumbral lunar eclipse on October 21.
- An annular solar eclipse on November 4.
- A penumbral lunar eclipse on November 19.
Metonic
- Preceded by: Solar eclipse of July 24, 2074
- Followed by: Solar eclipse of February 27, 2082
Tzolkinex
- Preceded by: Solar eclipse of March 31, 2071
- Followed by: Solar eclipse of June 22, 2085
Half-Saros
- Preceded by: Lunar eclipse of May 6, 2069
- Followed by: Lunar eclipse of May 17, 2087
Tritos
- Preceded by: Solar eclipse of June 11, 2067
- Followed by: Solar eclipse of April 10, 2089
Solar Saros 139
- Preceded by: Solar eclipse of April 30, 2060
- Followed by: Solar eclipse of May 22, 2096
Inex
- Preceded by: Solar eclipse of May 31, 2049
- Followed by: Solar eclipse of April 23, 2107
Triad
- Preceded by: Solar eclipse of July 11, 1991
- Followed by: Solar eclipse of March 12, 2165