A total solar eclipse will occur at the Moon's ascending node of orbit between Saturday, April 19 and Sunday, April 20, 2042,[1] with a magnitude of 1.0614. 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 21 hours after perigee (on April 19, 2042, at 5:25 UTC), the Moon's apparent diameter will be larger.[2]
The path of totality will be visible from parts of western Indonesia (particularly Sumatra), eastern Malaysia, Brunei and the Philippines. A partial solar eclipse will be visible for parts of South Asia, Southeast Asia, northern Australia, East Asia, Northeast Asia, Hawaii, and northwestern North America.
Animated path
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.[3]
| First Penumbral External Contact | 2042 April 19 at 23:41:45.0 UTC | |
| First Umbral External Contact | 2042 April 20 at 00:37:26.5 UTC | |
| First Central Line | 2042 April 20 at 00:38:41.2 UTC | |
| First Umbral Internal Contact | 2042 April 20 at 00:39:55.9 UTC | |
| First Penumbral Internal Contact | 2042 April 20 at 01:40:21.0 UTC | |
| Greatest Eclipse | 2042 April 20 at 02:17:30.1 UTC | |
| Ecliptic Conjunction | 2042 April 20 at 02:20:31.9 UTC | |
| Greatest Duration | 2042 April 20 at 02:21:20.1 UTC | |
| Equatorial Conjunction | 2042 April 20 at 02:32:33.0 UTC | |
| Last Penumbral Internal Contact | 2042 April 20 at 02:54:18.5 UTC | |
| Last Umbral Internal Contact | 2042 April 20 at 03:54:56.1 UTC | |
| Last Central Line | 2042 April 20 at 03:56:09.9 UTC | |
| Last Umbral External Contact | 2042 April 20 at 03:57:23.7 UTC | |
| Last Penumbral External Contact | 2042 April 20 at 04:53:11.4 UTC |
| Eclipse Magnitude | 1.06144 | |
| Eclipse Obscuration | 1.12666 | |
| Gamma | 0.29559 | |
| Sun Right Ascension | 01h52m12.4s | |
| Sun Declination | +11°31'19.4" | |
| Sun Semi-Diameter | 15'55.3" | |
| Sun Equatorial Horizontal Parallax | 08.8" | |
| Moon Right Ascension | 01h51m39.9s | |
| Moon Declination | +11°47'27.9" | |
| Moon Semi-Diameter | 16'37.6" | |
| Moon Equatorial Horizontal Parallax | 1°01'01.4" | |
| ΔT | 79.8 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.