55P9H3V0
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55P9H3V0  
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Pattern type  Spaceship  

Number of cells  55  
Bounding box  21×13  
Direction  Orthogonal  
Period  9  
Mod  9  
Speed  c/3  
Speed (unsimplified)  3c/9  
Heat  40.4  
Discovered by  Paul Tooke  
Year of discovery  2001  
 
 
 

55P9H3V0 is a c/3 orthogonal spaceship discovered by Paul Tooke in June 2001. It is the smallest known spaceship with an unsimplified speed of 3c/9. On September 19, 2020, Goldtiger997 found a 271glider synthesis for this spaceship, making it the first period9 spaceship to be synthesized.^{[1]}
References
 ↑ Goldtiger997 (September 19, 2020). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
External links
Categories:
 Patterns
 Patterns with 55 cells
 Patterns found by Paul Tooke
 Patterns found in 2001
 Patterns that can be constructed with 100 or more gliders
 Spaceships
 Periodic objects with minimum population 55
 Spaceships with period 9
 Orthogonal spaceships
 Spaceships with speed c/3
 Spaceships with unsimplified speed 3c/9
 Spaceships with heat 40
 Spaceships with mod 9
 Patterns with bilateral orthogonal symmetry
 Unnamed periodic objects