55P9H3V0
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| 55P9H3V0 | |||||||||
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| Pattern type | Spaceship | ||||||||
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| Number of cells | 55 | ||||||||
| Bounding box | 21 × 13 | ||||||||
| Direction | Orthogonal | ||||||||
| Period | 9 (mod: 9) | ||||||||
| Speed | c/3 | 3c/9 | ||||||||
| Heat | 40.4 | ||||||||
| Kinetic symmetry | -c | ||||||||
| Discovered by | Paul Tooke | ||||||||
| Year of discovery | 2001 | ||||||||
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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 271-glider synthesis for this spaceship, making it the first period-9 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
- Spaceships with 55 cells
- Periodic objects with minimum population 55
- Patterns with 55 cells
- Patterns found by Paul Tooke
- Patterns found in 2001
- Patterns that can be constructed with between 100 and 199 gliders
- Spaceships
- 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
- Spaceships with -c symmetry
- Unnamed periodic objects