Saturday, Oct. 28, 2023, Partial Lunar Eclipse Belongs to Saros 146

Summary: The Saturday, Oct. 28, 2023, partial lunar eclipse belongs to Saros cycle 146, a series of 72 similar lunar eclipses.

Penumbral eclipse of Tuesday, July 11, 1843, opened the 72-member lineup of lunar Saros 146: "Permission is freely granted to reproduce this data when accompanied by an acknowledgment: Eclipse Predictions by Fred Espenak and Jean Meeus (NASA's GSFC)," via NASA Eclipse Web Site

The Saturday, Oct. 28, 2023, partial lunar eclipse belongs to Saros cycle 146, which comprises 72 similar lunar eclipses.

The lunar Saros cycle assembles lunar eclipses with such similar geometries as occurrence at the same lunar node. The Saros cycle assigns similar eclipses to families, known as series.

The lunar orbit's two nodes distinguish the two points of intersection of the moon's orbit with Earth's orbit. At the ascending node, the lunar crossing points to the north of Earth’s orbit. At the descending node, the lunar crossing configures to the south of Earth’s orbit.

All of Saros 146 cycle's 72 lunar eclipses associate with the moon's ascending node, as explained by NASA (National Aeronautics and Space Administration) GSFC (Goddard Space Flight Center) astrophysicist Fred Espenak, now retired, in "Saros Series 146" on the NASA Eclipse Web Site. Each succeeding eclipse in Saros 146 exhibits southward movement. The cycle's opener, a penumbral eclipse on Tuesday, July 11, 1843, occurs near the northern edge of the penumbra (Latin: paene, “almost” + umbra, “shadow”), the lighter, outer part of Earth's shadow. The cycle's closer, a penumbral eclipse on Wednesday, Aug. 29, 3123, nears the penumbra's southern edge.

The Saros cycle of approximately 6,585.3 days (18 years 11 days 8 hours) establishes the periodicity and recurrence of eclipses in each cycle. Approximately 18 years separate each of the 72 eclipses in lunar Saros 146. Lunar Saros 146 traverses the 19th through 32nd centuries. Its duration totals 1,280.14 years.

The order of lunar eclipses in Saros 146 sequences as five sets comprising nine penumbral, 20 partial, 17 total, 19 partial and seven penumbral. With 39 occurrences, partial lunar eclipses dominate Saros 146 as the cycle's most frequent eclipse type. With 17 instances, total lunar eclipses qualify as the cycle's second-most frequent eclipse type. As the third-most frequent member of Saros 146 series, penumbral lunar eclipses contribute 16 occurrences to the series.

The Tuesday, July 11, 1843, penumbral eclipse that opened Saros series 146 favored the Eastern Hemisphere, with full visibility available to the Indian Ocean and continentally to Australia and Central, East, South and Southeast Asia. The Arctic Ocean, the Americas and much of Europe were excluded from the event's visibility regions. Visibility mostly prevailed for the Southern Ocean and continentally for Antarctica and Eastern, Middle and Southern Africa. The Atlantic and Pacific oceans experienced a range of visibility, from none to some to all.

Partial lunar eclipse of Saturday, Oct. 28, 2023, appears as second in Saros 146 cycle's 20-member first set of partial lunar eclipses and numbers as 11th in the 72-member lineup of Saros cycle 146: "Permission is freely granted to reproduce this data when accompanied by an acknowledgment: Eclipse Predictions by Fred Espenak and Jean Meeus (NASA's GSFC)," via NASA Eclipse Web Site

The Saturday, Oct. 28, 2023, partial lunar eclipse occurred as the second member in Saros 146 cycle's 20-member first set of partial lunar eclipses. The October 2023 event numbered as 11th in the cycle's lineup of 72 lunar eclipses.

The partial lunar eclipse of Monday, Oct. 17, 2005, immediately preceded the October 2023 lunar eclipse. As the set's opener, the October 2005 partial lunar eclipse numbered as first of the set's 20 members and as 10th in Saros 146 cycle's lineup of 72 lunar eclipses.

Partial lunar eclipse of Monday, Oct. 17, 2005, precedes the October 2023 partial lunar eclipse as the first member of Saros 146 cycle's first set of partial lunar eclipses and numbers as ninth in the 72-member lineup of Saros cycle 146: "Permission is freely granted to reproduce this data when accompanied by an acknowledgment: Eclipse Predictions by Fred Espenak and Jean Meeus (NASA's GSFC)," via NASA Eclipse Web Site

The October 2005 partial lunar eclipse did not favor any continent or ocean with full visibility. Varying visibility was available to Asia, Australia, North America and the Pacific Ocean, according to "Partial Lunar Eclipse of 2005 Oct 17" on Fred Espenak's EclipseWise website.

A partial lunar eclipse on Friday, Nov. 8, 2041, will succeed the Saturday, Oct. 28, 2023, partial lunar eclipse as the third member of Saros 146 cycle's first set of partial lunar eclipses. The November 2041 partial lunar eclipse appears as 12th in Saros 146 cycle's lineup of 72 lunar eclipses.

Partial lunar eclipse of Friday, Nov. 8, 2041, succeeds the Saturday, Oct. 28, 2023, partial lunar eclipse as the third member of Saros 146 cycle's first set of partial lunar eclipses and numbers as 11th in the 72-member lineup of Saros cycle 146: "Permission is freely granted to reproduce this data when accompanied by an acknowledgment: Eclipse Predictions by Fred Espenak and Jean Meeus (NASA's GSFC)," via NASA Eclipse Web Site

The November 2041 partial lunar eclipse favors the Western Hemisphere. Full visibility is available to South America. North America mostly experiences full visibility, especially for Canada and Greenland. Western portions of Southwest Alaska, including much of the Aleutian Islands, receive less than full visibility. Varying degrees of visibility are available to the Atlantic and Pacific oceans and continentally to Africa and Europe.

A partial lunar eclipse on Friday, May 14, 2348, closes Saros 146 cycle's 20-member first set of partial lunar eclipses. The May 2348 partial lunar eclipse numbers as 29th in Saros 146 cycle's lineup of 72 lunar eclipses.

The May 2348 partial lunar eclipse favors only South America with full visibility. No ocean experiences full visibility.

Partial lunar eclipse of Friday, May 14, 2348, closes Saros 146 cycle's 20-member first set of partial lunar eclipses and numbers as 29th in the 72-member lineup of Saros cycle 146: "Permission is freely granted to reproduce this data when accompanied by an acknowledgment: Eclipse Predictions by Fred Espenak and Jean Meeus (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:

Penumbral eclipse of Tuesday, July 11, 1843, opened the 72-member lineup of lunar Saros 146: "Permission is freely granted to reproduce this data when accompanied by an acknowledgment: Eclipse Predictions by Fred Espenak and Jean Meeus (NASA's GSFC)," via NASA Eclipse Web Site @ https://eclipse.gsfc.nasa.gov/5MCLEmap/1801-1900/LE1843-07-11N.gif

Partial lunar eclipse of Saturday, Oct. 28, 2023, appears as second in Saros 146 cycle's 20-member first set of partial lunar eclipses and numbers as 11th in the 72-member lineup of Saros cycle 146: Eclipse Predictions by Fred Espenak and Jean Meeus (NASA's GSFC), via NASA Eclipse Web Site @ https://eclipse.gsfc.nasa.gov/5MCLEmap/2001-2100/LE2023-10-28P.gif

Partial lunar eclipse of Monday, Oct. 17, 2005, precedes the October 2023 partial lunar eclipse as the first member of Saros 146 cycle's first set of partial lunar eclipses and numbers as ninth in the 72-member lineup of Saros cycle 146: "Permission is freely granted to reproduce this data when accompanied by an acknowledgment: Eclipse Predictions by Fred Espenak and Jean Meeus (NASA's GSFC)," via NASA Eclipse Web Site @ https://eclipse.gsfc.nasa.gov/5MCLEmap/2001-2100/LE2005-10-17P.gif

Partial lunar eclipse of Friday, Nov. 8, 2041, succeeds the Saturday, Oct. 28, 2023, partial lunar eclipse as the third member of Saros 146 cycle's first set of partial lunar eclipses and numbers as 11th in the 72-member lineup of Saros cycle 146: "Permission is freely granted to reproduce this data when accompanied by an acknowledgment: Eclipse Predictions by Fred Espenak and Jean Meeus (NASA's GSFC)," via NASA Eclipse Web Site @ https://eclipse.gsfc.nasa.gov/5MCLEmap/2001-2100/LE2041-11-08P.gif

Partial lunar eclipse of Friday, May 14, 2348, closes Saros 146 cycle's 20-member first set of partial lunar eclipses and numbers as 29th in the 72-member lineup of Saros cycle 146: "Permission is freely granted to reproduce this data when accompanied by an acknowledgment: Eclipse Predictions by Fred Espenak and Jean Meeus (NASA's GSFC)," via NASA Eclipse Web Site @ https://eclipse.gsfc.nasa.gov/5MCLEmap/2301-2400/LE2348-05-14P.gif

For further information:

Espenak, Fred. "Partial 2005 Oct 17." NASA Eclipse Web Site > Lunar Eclipses > Lunar Eclipse Catalogs > Catalog of Lunar Eclipse Saros Series > Lunar Eclipses of Saros Series 1 to 180 > Summary of Saros Series 126 to 150 > 146 > Saros Series 146 > Catalog of Lunar Eclipses in Saros 146.
Available via NASA Eclipse Web Site @ https://eclipse.gsfc.nasa.gov/5MCLEmap/2001-2100/LE2005-10-17P.gif

Espenak, Fred. "Partial 2023 Oct 28." NASA Eclipse Web Site > Lunar Eclipses > Lunar Eclipse Catalogs > Catalog of Lunar Eclipse Saros Series > Lunar Eclipses of Saros Series 1 to 180 > Summary of Saros Series 126 to 150 > 146 > Saros Series 146 > Catalog of Lunar Eclipses in Saros 146.
Available @ https://eclipse.gsfc.nasa.gov/5MCLEmap/2001-2100/LE2023-10-28P.gif

Espenak, Fred. "Partial 2041 Nov 08." NASA Eclipse Web Site > Lunar Eclipses > Lunar Eclipse Catalogs > Catalog of Lunar Eclipse Saros Series > Lunar Eclipses of Saros Series 1 to 180 > Summary of Saros Series 126 to 150 > 146 > Saros Series 146 > Catalog of Lunar Eclipses in Saros 146.
Available via NASA Eclipse Web Site @ https://eclipse.gsfc.nasa.gov/5MCLEmap/2001-2100/LE2041-11-08P.gif

Espenak, Fred. "Partial 2348 May 14." NASA Eclipse Web Site > Lunar Eclipses > Lunar Eclipse Catalogs > Catalog of Lunar Eclipse Saros Series > Lunar Eclipses of Saros Series 1 to 180 > Summary of Saros Series 126 to 150 > 146 > Saros Series 146 > Catalog of Lunar Eclipses in Saros 146.
Available @ https://eclipse.gsfc.nasa.gov/5MCLEmap/2301-2400/LE2348-05-14P.gif

Espenak, Fred. "Partial Lunar Eclipse of 2005 Oct 17.." EclipseWise > Lunar Eclipses > Lunar Eclipse Links > Saros Catalog of Lunar Eclipses > Lunar Eclipses of Saros Series -29 to 190 > Summary of Saros Series 121 to 150 > 146 > Catalog of Lunar Eclipses of Saros 146 > Seq Num 11 Rel Num -26 2023-Oct-28.
Available via EclipseWise @ https://eclipsewise.com/lunar/LEprime/2001-2100/LE2005Oct17Pprime.html

Espenak, Fred. "Partial Lunar Eclipse of 2023 Oct 28." EclipseWise > Lunar Eclipses > Lunar Eclipse Links > Saros Catalog of Lunar Eclipses > Lunar Eclipses of Saros Series -29 to 190 > Summary of Saros Series 121 to 150 > 146 > Catalog of Lunar Eclipses of Saros 146 > Seq Num 11 Rel Num -26 2023-Oct-28.
Available via EclipseWise @ https://eclipsewise.com/lunar/LEprime/2001-2100/LE2023Oct28Pprime.html

Espenak, Fred. "Partial Lunar Eclipse of 2041 Nov 08." EclipseWise > Lunar Eclipses > Lunar Eclipse Links > Saros Catalog of Lunar Eclipses > Lunar Eclipses of Saros Series -29 to 190 > Summary of Saros Series 121 to 150 > 146 > Catalog of Lunar Eclipses of Saros 146 > Seq Num 11 Rel Num -26 2023-Oct-28.
Available via EclipseWise @ https://eclipsewise.com/lunar/LEprime/2001-2100/LE2041Nov08Pprime.html

Espenak, Fred. "Penumbral 1843 Jul 11." NASA Eclipse Web Site > Lunar Eclipses > Lunar Eclipse Catalogs > Catalog of Lunar Eclipse Saros Series > Lunar Eclipses of Saros Series 1 to 180 > Summary of Saros Series 126 to 150 > 146 > Saros Series 146 > Catalog of Lunar Eclipses in Saros 146.
Available via NASA Eclipse Web Site @ https://eclipse.gsfc.nasa.gov/5MCLEmap/1801-1900/LE1843-07-11N.gif

Espenak, Fred. "Saros Series 146." NASA Eclipse Web Site > Lunar Eclipses > Lunar Eclipse Catalogs > Catalog of Lunar Eclipse Saros Series > Lunar Eclipses of Saros Series 1 to 180 > Summary of Saros Series 126 to 150 > 146.
Available via NASA Eclipse Web Site @ https://eclipse.gsfc.nasa.gov/LEsaros/LEsaros146.html

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