The path of totality will start in eastern Pennsylvania. A total eclipse will be visible along the path of Philadelphia, New York City, Hartford, Boston, and Portland, Maine in the United States. Partial eclipses will be visible in Charlotte, Richmond, Cleveland, Detroit, Chicago, Washington, D.C., and Buffalo. In Canada, the total eclipse can be visible in Halifax, and Saint John, while the partial eclipse can be seen in Montreal, Toronto, Ottawa, and most of northern Canada. The path then passes directly through Nuuk, making it visible to most of Greenland. The path will end near the Bering Strait. A partial eclipse can be visible in a very small part of South America, Northern Africa, Europe and Northern Asia (Mostly Russia). The path of totality barely misses the North Pole by about 100 miles (160 km).

Delta T: 1 minute, 47.3 seconds

Magnitude = 1.05116

Obscuration = 1.10494

Gamma = 0.90808

Greatest eclipse = 01 May 2079 10:48:25.6 UTC (10:50:12.8 AT)

Sun right ascension = 2 hours, 35 minutes, 18.8 seconds

Sun declination = 15 degrees, 12 minutes, 6.8 seconds north of the celestial equator

Moon right ascension = 2 hours, 33 minutes, 47.0 seconds

Moon declination = 16 degrees, 2 minutes, 36.5 seconds north of the celestial equator

Sun diameter = 1905.2 arcseconds

Moon diameter = 1989.4 arcseconds

Path width at greatest eclipse = 405.7 km (252.1 mi)

Path width at greatest duration = 404.8 km (251.5 mi)

Totality at greatest eclipse = 2 minutes, 54 seconds, 910 milliseconds

Totality at greatest duration = 2 minutes, 54 seconds, 920 milliseconds

Solar eclipses 2076–2079 edit

This eclipse is a member of a semester series. An eclipse in a semester series of solar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.^[1]

Saros 149 edit

Solar saros 149, repeating every about 18 years and 11 days, contains 71 events. The series started with a partial solar eclipse on August 21, 1664. It has total eclipses from April 9, 2043, to October 2, 2331. The series ends at member 71 as a partial eclipse on September 28, 2926. The longest total eclipse will be on July 17, 2205, at 4 minutes and 10 seconds.^[2]

Inex series edit

This eclipse is a part of the long period inex cycle, repeating at alternating nodes, every 358 synodic months (≈ 10,571.95 days, or 29 years minus 20 days). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee). However, groupings of 3 inex cycles (≈ 87 years minus 2 months) comes close (≈ 1,151.02 anomalistic months), so eclipses are similar in these groupings. In the 19th century:

• Solar saros 140: total solar eclipse of October 29, 1818
• Solar saros 141: annular solar eclipse of October 9, 1847
• Solar saros 142: total solar eclipse of September 17, 1876

In the 22nd century:

• Solar saros 150: partial solar eclipse of April 11, 2108
• Solar saros 151: annular solar eclipse of March 21, 2137
• Solar saros 152: total solar eclipse of March 2, 2166
• Solar saros 153: annular solar eclipse of February 10, 2195

Tritos series edit

This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee), but groupings of 3 tritos cycles (≈ 33 years minus 3 months) come close (≈ 434.044 anomalistic months), so eclipses are similar in these groupings.

Metonic series edit

The metonic series repeats eclipses every 19 years (6939.69 days), lasting about 5 cycles. Eclipses occur in nearly the same calendar date. In addition, the octon subseries repeats 1/5 of that or every 3.8 years (1387.94 days). All eclipses in this table occur at the Moon's ascending node.

• Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC
  • Google interactive map
  • Besselian elements