Nov. 25, 2011, Partial Solar Eclipse Belongs to Saros Series 123

Summary: The Friday, Nov. 25, 2011, partial solar eclipse belongs to Saros cycle 123, a series of 70 similar solar eclipses.

Partial solar eclipse of April 29, 1074, opened Saros solar series 123’s lineup of 70 solar eclipses: "Permission is freely granted to reproduce this data when accompanied by an acknowledgment, Eclipse Predictions by Fred Espenak (NASA's GSFC)," via NASA Eclipse Web Site

The Friday, Nov. 25, 2011, partial solar eclipse belongs to Saros cycle 123, which comprises 70 solar eclipses with similar geometries.

November’s partial solar eclipse begins Friday, Nov. 25, 2011, at 04:23:15.5 Universal Time, according to the NASA Eclipse Web Site. Greatest eclipse takes place at 06:20:16.6 UT. Greatest eclipse refers to the instant of the closest passage of the lunar shadow cone’s axis to Earth’s center. The eclipse ends at 08:17:15.6 UT.

November 2011’s partial solar eclipse numbers as 53 in the lineup of 70 solar eclipses that compose Saros cycle 123. Similar geometries identify the 70 solar eclipses as a family, known as a series.

The NASA Eclipse Web Site describes Saros 123 solar eclipses as sharing the geometry of occurring at the moon’s ascending node. With each succeeding eclipse in Saros 123, the lunar movement is southward of the ascending node.

A pair of ascending and descending nodes announce the intersections of Earth’s orbit by the moon’s orbit. The approximately 5.1 degree tilt of the moon’s orbit with respect to Earth’s orbit explains the two nodes. The ascending node links with the lunar orbital crossing to the north of Earth’s orbit. The descending node associates with the lunar orbital crossing to the south of Earth’s orbit.

The Saros cycle of approximately 6,585.3 days (18 years 11 days 8 hours) governs the periodicity and recurrence of solar eclipses. Each Saros series comprises 70 or more eclipses that have a typical timeline of over 12 to 13 centuries.

Saros solar series 123 lasts for 1,224.08 years, according to the NASA Eclipse Web Site. The series covers 14 centuries. Saros solar series 123 encompasses the 11th through 24th centuries.

Solar eclipses in Saros series 123 follows a sequence order of six partial solar eclipses, 27 annular solar eclipses, three hybrid solar eclipses, 14 total solar eclipses and 20 partial solar eclipses. Annular solar eclipses contribute the most number of eclipses to Saros series 123, with a total of 27 occurrences. Partial solar eclipses are the second most frequent, with a total of 26 occurrences.

The partial solar eclipse of Wednesday, April 29, 1074, opened Saros solar series 123. This Northern Hemisphere event stages its greatest eclipse, with coordinates of 62.2 north at 39.8 east, over Arkhangelsk Oblast in northwestern Russia.

The partial solar eclipse of Friday, May 31, 2318, will close Saros solar series 123. This Southern Hemisphere event's greatest eclipse, with coordinates of 64.2 south at 131.2 east, will take place over the Southern Ocean, northeast of East Antarctica's Concordia Station.

The partial solar eclipse of Friday, Nov. 25, 2011, numbers as third in Saros solar series 123’s closing sequence of 20 partial solar eclipses. This Southern Hemisphere event experiences its greatest eclipse, with coordinates of 68.6 south at 82.4 west, over the Southern Ocean, northwest of the Antarctic Peninsula's Alexander Island.

A partial solar eclipse on Saturday, Nov. 13, 1993, was the immediate predecessor of the November 2011 partial solar eclipse in Saros solar series 123. This Southern Hemisphere event's greatest eclipse, with coordinates of 69.6 south at 58.3 east, occurred over East Antarctica, northwest of Davis Station.

The November 1993 partial solar eclipse occurred as second in Saros solar series 123’s closing sequence of 20 partial solar eclipses. The event numbered 52 in the series’ lineup of 70 solar eclipses.

A partial solar eclipse on Wednesday, Dec. 5, 2029, succeeds the November 2011 partial solar eclipse in Saros solar series 123. This Southern Hemisphere event will stage its greatest eclipse, with coordinates of 67.5 south at 135.7 east, over East Antarctica, northeast of Concordia Station.

The December 2029 partial solar eclipse will occur as the fourth of 20 partial solar eclipses in Saros solar series 123’s closing sequence. This eclipse numbers 54 in the series’ lineup of 70 solar eclipses.

The takeaway for the Friday, Nov. 25, 2011, partial solar eclipse is that the astronomical event appears as number 53 in Saros solar series 123’s lineup of 70 solar eclipses and as the third occurrence in the series’ closing sequence of 20 partial solar eclipses.

Partial solar eclipse of Friday, May 31, 2318, will close Saros solar series 123’s lineup of 70 solar eclipses: "Permission is freely granted to reproduce this data when accompanied by an acknowledgment, Eclipse Predictions by Fred Espenak (NASA's GSFC)," via NASA Eclipse Web Site

Acknowledgment

My special thanks to talented artists and photographers/concerned organizations who make their fine images available on the internet.

Image credits:

Partial solar eclipse of April 29, 1074, opened Saros solar series 123’s lineup of 70 solar eclipses: "Permission is freely granted to reproduce this data when accompanied by an acknowledgment, Eclipse Predictions by Fred Espenak (NASA's GSFC)," via NASA Eclipse Web Site @ https://eclipse.gsfc.nasa.gov/5MCSEmap/1001-1100/1074-04-29.gif

Partial solar eclipse of Friday, May 31, 2318, will close Saros solar series 123’s lineup of 70 solar eclipses: "Permission is freely granted to reproduce this data when accompanied by an acknowledgment, Eclipse Predictions by Fred Espenak (NASA's GSFC)," via NASA Eclipse Web Site @ https://eclipse.gsfc.nasa.gov/5MCSEmap/2301-2400/2318-05-31.gif

For further information:

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