Solar eclipse of September 14, 2099

A total solar eclipse will occur at the Moon's descending node of orbit on Monday, September 14, 2099, with a magnitude of 1.0684. 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 5 hours before perigee, the Moon's apparent diameter will be larger.

Locations experiencing totality

The eclipse will begin at sunrise off the western coast of Canada, and move eastern across Canada and the northern states of the United States. The eclipse will end in the Atlantic Ocean, with partial visibility in parts of Central America, the Caribbean, northern South America, the Iberian Peninsula, West Africa and throughout the entirety of North.
The path of totality will pass through the cities of Madison, Wisconsin, and Grand Rapids, Michigan. The last time totality was visible over these two locations was respectively May 16, 1379, and April 18, 1558.

British Columbia

Williams Lake

Alberta

Saskatchewan

Swift Current

Montana

Plentywood

North Dakota

Minnesota

Wisconsin

Illinois

Michigan

Indiana

Ohio

Pennsylvania

Waynesburg

West Virginia

Virginia

North Carolina

Although this solar eclipse does pass over a few large cities such as Minneapolis and Virginia Beach, it fails to offer totality in several major cities nearby, including most of Chicago and all of Washington D.C., Detroit, Cincinnati and Cleveland. Moreover, in Canada, the cities of Moose Jaw and Regina will be directly north of the path, but not in it.

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	2099 September 14 at 14:25:44.7 UTC
First Umbral External Contact	2099 September 14 at 15:22:08.5 UTC
First Central Line	2099 September 14 at 15:23:37.5 UTC
First Umbral Internal Contact	2099 September 14 at 15:25:06.8 UTC
First Penumbral Internal Contact	2099 September 14 at 16:32:45.5 UTC
Equatorial Conjunction	2099 September 14 at 16:35:31.9 UTC
Ecliptic Conjunction	2099 September 14 at 16:53:52.7 UTC
Greatest Duration	2099 September 14 at 16:56:49.2 UTC
Greatest Eclipse	2099 September 14 at 16:57:53.0 UTC
Last Penumbral Internal Contact	2099 September 14 at 17:23:30.3 UTC
Last Umbral Internal Contact	2099 September 14 at 18:30:52.9 UTC
Last Central Line	2099 September 14 at 18:32:22.2 UTC
Last Umbral External Contact	2099 September 14 at 18:33:51.3 UTC
Last Penumbral External Contact	2099 September 14 at 19:30:09.7 UTC

Parameter	Value
Eclipse Magnitude	1.06844
Eclipse Obscuration	1.14156
Gamma	0.39422
Sun Right Ascension	11h31m25.7s
Sun Declination	+03°05'04.1"
Sun Semi-Diameter	15'53.8"
Sun Equatorial Horizontal Parallax	08.7"
Moon Right Ascension	11h32m12.4s
Moon Declination	+03°26'11.8"
Moon Semi-Diameter	16'43.1"
Moon Equatorial Horizontal Parallax	1°01'21.6"
ΔT	123.3 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.