|View animated image|
|View static image|
|Oscillator type||Muttering moat|
|Number of cells||13|
|Rotor type||Pole 7|
|Discovered by||MIT group|
|Year of discovery||1970|
The heptapole (or septapole) is the barberpole of length 7.
The first known appearance of the heptapole in a symmetric soup was on January 26, 2015, in a soup found by gameoflifeboy using apgsearch. It first appeared naturally on December 11, 2018, in a haul submitted to Catagolue, making it the longest barberpole and the last 13-bit periodic object to have emerged naturally.
- 13P2.2 at Heinrich Koenig's Game of Life Object Catalogs