An annular solar eclipse will occur at the Moon's ascending node of orbit between Sunday, July 1 and Monday, July 2, 2057,[1] with a magnitude of 0.9464. 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. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. Occurring about 1.7 days after apogee (on June 30, 2057, at 6:30 UTC), the Moon's apparent diameter will be smaller.[2]
The path of annularity will be visible from parts of northwest China, Mongolia, eastern Russia, northern Alaska, western and central Canada, and far northeast Minnesota, northern Michigan, and far western New York in the United States. A partial solar eclipse will also be visible for parts of East Asia, Northeast Asia, Northern Europe, and North America.
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 | 2057 July 01 at 20:57:37.1 UTC | |
| First Umbral External Contact | 2057 July 01 at 22:18:26.2 UTC | |
| First Central Line | 2057 July 01 at 22:21:42.3 UTC | |
| First Umbral Internal Contact | 2057 July 01 at 22:25:03.1 UTC | |
| Greatest Duration | 2057 July 01 at 23:39:32.9 UTC | |
| Greatest Eclipse | 2057 July 01 at 23:40:15.3 UTC | |
| Equatorial Conjunction | 2057 July 01 at 23:41:59.0 UTC | |
| Ecliptic Conjunction | 2057 July 01 at 23:49:02.6 UTC | |
| Last Umbral Internal Contact | 2057 July 02 at 00:55:27.3 UTC | |
| Last Central Line | 2057 July 02 at 00:58:47.1 UTC | |
| Last Umbral External Contact | 2057 July 02 at 01:02:02.1 UTC | |
| Last Penumbral External Contact | 2057 July 02 at 02:22:50.7 UTC |
| Eclipse Magnitude | 0.94638 | |
| Eclipse Obscuration | 0.89564 | |
| Gamma | 0.74551 | |
| Sun Right Ascension | 06h46m13.5s | |
| Sun Declination | +23°00'23.1" | |
| Sun Semi-Diameter | 15'43.9" | |
| Sun Equatorial Horizontal Parallax | 08.6" | |
| Moon Right Ascension | 06h46m10.1s | |
| Moon Declination | +23°40'36.4" | |
| Moon Semi-Diameter | 14'44.6" | |
| Moon Equatorial Horizontal Parallax | 0°54'06.5" | |
| ΔT | 88.8 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.
