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|Number of cells||170|
|Discovered by||Nicolay Beluchenko|
|Year of discovery||2005|
Seal is a diagonal spaceship that was discovered by Nicolay Beluchenko on September 17, 2005. It was the first diagonal c/6 spaceship to be found. Seal has one known tagalong (displayed below), discovered by Beluchenko on September 22, 2005. These two spaceships are the only known diagonal spaceships with speed c/6.
- Jason Summers' jslife pattern collection. Retrieved on June 12, 2009.