A total solar eclipse will occur at the Moon's descending node of orbit on Saturday, August 12, 2045,[1] 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 only about 7 minutes after perigee (on August 12, 2045, at 17:35 UTC), the Moon's apparent diameter will be larger.[2]
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.[3] 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 25.9099°N -110.19°W, 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 (i.e. moves from south to north during odd-numbered saros), the path of the eclipse tracks from coast to coast. When a solar eclipse crosses the U.S. in mid-August at descending node (even numbered saros), the path tracks a large distance southward.[4]
| Country or Territory | City or Town | Startof partial eclipse (Local Time) | Start of total eclipse (Local Time) | End of total eclipse (Local Time) | Duration of total eclipse | End of partial eclipse (Local Time) | Magnitude | |
|---|---|---|---|---|---|---|---|---|
| Eureka, California | 07:13:02 | 08:14:21 | 08:18:28 | 4 min 07s | 09:25:23 | 1,069 | ||
| Redding, California | 07:13:45 | 08:15:43 | 08:20:07 | 4 min 25 s | 09:27:43 | 1,069 | ||
| Reno, Nevada | 07:14:41 | 08:18:43 | 08:21:30 | 2 min 46 s | 09:31:21 | 1,070 | ||
| Salt Lake City, Utah | 08:20:54 | 09:28:15 | 09:30:32 | 2 min 17 s | 10:43:03 | 1,072 | ||
| Colorado Springs, Colorado | 08:27:14 | 09:36:48 | 09:41:54 | 5 min 06 s | 10:55:58 | 1,073 | ||
| Oklahoma City, Oklahoma | 09:36:37 | 10:51:13 | 10:54:39 | 3 min 26 s | 12:12:22 | 1,075 | ||
| Tulsa, Oklahoma | 09:38:39 | 10:52:22 | 10:57:58 | 5 min 36 s | 12:14:22 | 1,075 | ||
| Little Rock, Arkansas | 09:44:40 | 11:00:05 | 11:05:43 | 5 min 38 s | 12:22:42 | 1,076 | ||
| Jackson, Mississippi | 09:49:31 | 11:07:44 | 11:11:07 | 3 min 23 s | 12:30:05 | 1,076 | ||
| Montgomery, Alabama | 09:56:11 | 11:14:28 | 11:18:51 | 4 min 23 s | 12:36:40 | 1,077 | ||
| Tallahassee, Florida | 11:01:35 | 12:20:12 | 12:26:07 | 5 min 55 s | 13:43:20 | 1,077 | ||
| Tampa, Florida | 11:07:45 | 12:27:56 | 12:32:53 | 4 min 57s | 13:50:40 | 1,077 | ||
| Orlando, Florida | 11:09:09 | 12:28:38 | 12:34:24 | 5 min 46 s | 13:51:17 | 1,077 | ||
| Miami, Florida | 11:14:54 | 12:36:43 | 12:39:43 | 3 min 00 s | 13:58:03 | 1,077 | ||
| Jensen Beach, Florida | 11:12:59 | 12:32:45 | 12:38:51 | 6 min 6 s | 13:55:27 | 1,077 | ||
| Freeport | 11:17:05 | 12:37:08 | 12:42:49 | 5 min 41 s | 13:59:07 | 1,077 | ||
| Nassau | 11:21:48 | 12:41:58 | 12:48:02 | 6 min 04 s | 14:03:50 | 1,077 | ||
| Providenciales | 11:37:30 | 12:58:48 | 13:01:21 | 2 min 34 s | 14:16:38 | 1,077 | ||
| Cap-Haïtien | 11:41:01 | 13:01:02 | 13:06:44 | 5 min 32 s | 14:20:32 | 1,077 | ||
| Santo Domingo | 12:47:54 | 14:07:15 | 14:13:01 | 5 min 47 s | 15:25:31 | 1,077 | ||
| Porlamar | 13:14:00 | 14:31:31 | 14:34:47 | 3 min 16 s | 15:44:20 | 1,075 | ||
| Port of Spain | 13:18:48 | 14:34:13 | 14:39:09 | 4 min 57 s | 15:46:07 | 1,074 | ||
| Tucupita | 13:20:52 | 14:38:08 | 14:39:29 | 1 min 21 s | 15:48:42 | 1,074 | ||
| Georgetown | 13:31:37 | 14:44:37 | 14:49:33 | 4 min 56 s | 15:54:35 | 1,073 | ||
| Paramaribo | 13:38:08 | 14:50:14 | 14:53:13 | 3 min 00 s | 15:57:03 | 1,072 | ||
| Apatou | 13:40:28 | 14:52:04 | 14:54:53 | 2 min 49 s | 15:58:46 | 1,071 | ||
| Belém, Pará | 14:58:25 | 16:05:53 | 16:07:56 | 2 min 03 s | 117:08:20 | 1,069 | ||
| Sāo Luis, Maranhāo | 15:04:34 | 16:08:41 | 16:12:41 | 4 min 00 s | 17:10:10 | 1,067 | ||
| Joāo Pessoa, Paraíba | 15:17:29 | 16:16:37 | 16:20:02 | 3 min 26 s | 17:13:36 | 1,063 | ||
| Recife, Pernambuco | 15:18:22 | 16:17:42 | 16:20:26 | 2 min 44 s | 17:14:15 | 1,063 |
Animated path: Small dark circle represents umbra, much larger grey circle represents penumbra.
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.[5]
| 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 |
| 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 |
See also: Eclipse cycle. This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two (or occasionally three) eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months (173 days) 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.