58P5H1V1
58P5H1V1  
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Pattern type  Spaceship  

Number of cells  58  
Bounding box  24 × 24  
Direction  Diagonal  
Period  5  
Mod  5  
Speed  c/5  
Speed (unsimplified)  c/5  
Heat  64  
Discovered by  Matthias Merzenich  
Year of discovery  2010  
 
 
 

58P5H1V1 is an unnamed c/5 diagonal spaceship discovered by Matthias Merzenich on September 5, 2010.^{[1]} In terms of its minimum population of 58 cells it is the smallest known c/5 diagonal spaceship. It provides sparks at its trailing edge which can perturb gliders, and this property was used to create the first c/5 diagonal puffers. These sparks also allow the attachment of tagalongs which was used to create the first c/5 diagonal wickstretcher in January 2011.^{[2]} A period1540 glidesymmetric threeship puffer was discovered by Peter Naszvadi in March 2020.^{[3]}
The final step for a glider synthesis of this spaceship was found by Goldtiger997 and Tanner Jacobi on April 2, 2020.^{[4]} Goldtiger997 posted a complete 220glider synthesis, including the base still life, on the next day,^{[5]} making 58P5H1V1 the first spaceship of its speed to be synthesized. Reductions to the synthesis have since been made.^{[6]}^{[7]}^{[8]}^{[9]} A 58P5H1V1 gun with period 2760 was posted by Entity Valkyrie on May 22.^{[10]}
Goldtiger997 constructed a 1G seed for 58P5H1V1 on July 7, 2020.^{[11]} A version of this seed constellation was soon proven to be gliderconstructible, opening up the possibility of selfconstructing spaceships with diagonal speeds approaching c/5, where the previous limit had been c/12 with the use of constructible Corderships.
The first c/5 diagonal puffer to be discovered (Matthias Merzenich, September 5, 2010) (click above to open LifeViewer) RLE: here Plaintext: here 
The first c/5 diagonal wickstretcher to be discovered (Matthias Merzenich, January 2011) (click above to open LifeViewer) RLE: here Plaintext: here 
See also
References
 ↑ Jason Summers' jslife pattern collection. Retrieved on October 28, 2020.
 ↑ New c/5 diagonal technology at Game of Life News. Posted by Adam P. Goucher on January 26, 2011.
 ↑ Peter Naszvadi (March 27, 2020). Re: Thread For Your Useless Discoveries (discussion thread) at the ConwayLife.com forums
 ↑ Tanner Jacobi (April 2, 2020). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
 ↑ Goldtiger997 (April 3, 2020). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
 ↑ Goldtiger997 (April 4, 2020). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
 ↑ Tanner Jacobi (April 4, 2020). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
 ↑ Goldtiger997 (May 2, 2020). Message in #cgol on the Conwaylife Lounge Discord server
 ↑ Goldtiger997 (May 3, 2020). Message in #cgol on the Conwaylife Lounge Discord server
 ↑ Entity Valkyrie (May 22, 2020). Re: Construction practice (discussion thread) at the ConwayLife.com forums
 ↑ Goldtiger997 (July 7, 2020). One Glider Seeds (discussion thread) at the ConwayLife.com forums
External links
 58P5H1V1 at the Life Lexicon
 58P5H1V1 at Adam P. Goucher's Catagolue
 Patterns
 Spaceships with 58 cells
 Periodic objects with minimum population 58
 Patterns with 58 cells
 Patterns found by Matthias Merzenich
 Patterns found in 2010
 Patterns that can be constructed with between 100 and 199 gliders
 Spaceships
 Spaceships with period 5
 Diagonal spaceships
 Spaceships with speed c/5
 Spaceships with unsimplified speed c/5
 Spaceships with heat 64
 Spaceships with mod 5
 Patterns with bilateral diagonal symmetry
 Unnamed periodic objects