Solar eclipse of August 12, 2045
A total solar eclipse will occur at the Moon's descending node of orbit on Saturday, August 12, 2045, with a magnitude of 1.0774. 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 7 minutes after perigee, the Moon's apparent diameter will be near its maximum.
It will be the fourth longest eclipse of the 21st century with a magnitude of 1.0774. It will be visible throughout much of the continental United States, with a path of totality running through northern California, Nevada, Utah, Colorado, Kansas, Oklahoma, Texas, Arkansas, northeastern Louisiana, Mississippi, Alabama, Georgia and Florida. The total eclipse will be greatest over the Bahamas, before continuing over the Turks and Caicos Islands, the Dominican Republic, Haiti, northeastern Venezuela, Trinidad and Tobago, Guyana, Suriname, French Guiana, and northeastern Brazil. A partial solar eclipse will also be visible for parts of the Russian Far East, Hawaii, North America, Central America, the Caribbean, northern and central South America, and West Africa.
The path of totality of this eclipse will be seen over many major cities, including Reno, Salt Lake City, Colorado Springs, Oklahoma City, Tulsa, Jackson, Montgomery, Tallahassee, Tampa, Orlando, Fort Lauderdale, Miami, Nassau, Santo Domingo, Porlamar, Port of Spain, Georgetown, Paramaribo, Belém, São Luís, Joāo Pessoa and Recife. It will also be the second total eclipse visible from Little Rock in 21.3 years. Totality will last for at least 6 minutes along the part of the path that starts at Camden, Alabama, crossing Florida and ending near the southernmost Bahama Islands. The longest duration of totality will be 6 minutes 5.5 seconds at, which is over the Atlantic Ocean east of Fort Lauderdale and south of Freeport, Bahamas.
The solar eclipse of August 21, 2017 had a very similar path of totality over the U.S., about to the northeast, also crossing the Pacific coast and Atlantic coast of the country. This is because when a solar eclipse crosses the U.S. in mid-August at an ascending node, the path of the eclipse tracks from coast to coast. When a solar eclipse crosses the U.S. in mid-August at descending node, the path tracks a large distance southward.
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 | 2045 August 12 at 15:07:00.8 UTC |
| First Umbral External Contact | 2045 August 12 at 16:00:47.6 UTC |
| First Central Line | 2045 August 12 at 16:02:23.2 UTC |
| First Umbral Internal Contact | 2045 August 12 at 16:03:58.9 UTC |
| First Penumbral Internal Contact | 2045 August 12 at 16:59:52.7 UTC |
| Equatorial Conjunction | 2045 August 12 at 17:32:55.3 UTC |
| Greatest Duration | 2045 August 12 at 17:36:50.7 UTC |
| Ecliptic Conjunction | 2045 August 12 at 17:40:30.1 UTC |
| Greatest Eclipse | 2045 August 12 at 17:42:39.1 UTC |
| Last Penumbral Internal Contact | 2045 August 12 at 18:25:38.4 UTC |
| Last Umbral Internal Contact | 2045 August 12 at 19:21:25.5 UTC |
| Last Central Line | 2045 August 12 at 19:23:01.0 UTC |
| Last Umbral External Contact | 2045 August 12 at 19:24:36.5 UTC |
| Last Penumbral External Contact | 2045 August 12 at 20:18:21.5 UTC |
| Parameter | Value |
| Eclipse Magnitude | 1.07736 |
| Eclipse Obscuration | 1.16069 |
| Gamma | 0.21161 |
| Sun Right Ascension | 09h31m17.7s |
| Sun Declination | +14°40'40.5" |
| Sun Semi-Diameter | 15'47.0" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 09h31m39.7s |
| Moon Declination | +14°52'29.9" |
| Moon Semi-Diameter | 16'43.3" |
| Moon Equatorial Horizontal Parallax | 1°01'22.3" |
| ΔT | 81.6 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.| August 12 Descending node | August 27 Ascending node |
| Total solar eclipse Solar Saros 136 | Penumbral lunar eclipse Lunar Saros 148 |
Related eclipses
Eclipses in 2045
- An annular solar eclipse on February 16.
- A penumbral lunar eclipse on March 3.A total solar eclipse on August 12.
- A penumbral lunar eclipse on August 27.
Metonic
- Preceded by: Solar eclipse of October 25, 2041
- Followed by: Solar eclipse of May 31, 2049
Tzolkinex
- Preceded by: Solar eclipse of July 2, 2038
- Followed by: Solar eclipse of September 22, 2052
Half-Saros
- Preceded by: Lunar eclipse of August 7, 2036
- Followed by: Lunar eclipse of August 18, 2054
Tritos
- Preceded by: Solar eclipse of September 12, 2034
- Followed by: Solar eclipse of July 12, 2056
Solar Saros 136
- Preceded by: Solar eclipse of August 2, 2027
- Followed by: Solar eclipse of August 24, 2063
Inex
- Preceded by: Solar eclipse of September 1, 2016
- Followed by: Solar eclipse of July 24, 2074
Triad
- Preceded by: Solar eclipse of October 12, 1958
- Followed by: Solar eclipse of June 13, 2132