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Scepter Valley    

Robert P. Munafo, 2023 Apr 18.

Also known as Seahorse Valley West, this is a colloquial name for the cusps between R2.1/2a and R2.1/2.1/2a, particularly the upper one, R2.1/2.C(1/2)-. See also Double Scepter valley.

When distinguishing features on opposing sides of the valley, the side closer to R2.1/2a retains the name "scepter valley" while the side closer to R2.1/2.1/2a is called dragon valley. The embedded Julia sets found in an island's "scepter valley" are sometimes called scepter medallions.

This picture shows the reason for the name: a seahorse with "scepters".

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See R2.1/2.C(1/2) for more illustrations.

revisions: 20080131 oldest on record; 20230417 link to "dragon valley" and the "medallion" type

From the Mandelbrot Set Glossary and Encyclopedia, by Robert Munafo, (c) 1987-2024.

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