Crown
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Crown  
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Pattern type  Oscillator  

Number of cells  63  
Bounding box  23×15  
Period  12  
Mod  12  
Heat  51.7  
Volatility  0.73  
Strict volatility  0.23  
Discovered by  Noam Elkies  
Year of discovery  1995  
 
 

Crown is a period 12 oscillator that was found by Noam Elkies in January 1995. Alternatively, it may refer just to the 10cell piece at the top of the oscillator in generation 10 (shown below in green) that is hassled by two caterers and a heavyweight emulator.
It is used in the pi orbital and p156 Hans Leo hassler.
A 52glider synthesis is known for a variant of this oscillator which uses two jams rather than two caterers for stabilization.^{[1]}
By replacing the caterers with extensible p3 oscillator, an extensible crown can be made:
(click above to open LifeViewer) RLE: here Plaintext: here 
Image gallery
See also
References
 ↑ Adam P. Goucher. "xp12_0ggy069li0o8z343si6xgjzxvvfx33hzcis346wo4aj064zy511". Catagolue. Retrieved on June 1, 2019.
External links
 Crown at the Life Lexicon
Categories:
 Patterns
 Oscillators with 63 cells
 Patterns with 63 cells
 Patterns found by Noam Elkies
 Patterns found in 1995
 Oscillators
 Periodic objects with minimum population 63
 Oscillators with period 12
 Oscillators with mod 12
 Oscillators with heat 51
 Oscillators with volatility 0.73
 Oscillators with strict volatility 0.23
 Sparkers
 Sparkers with period 12
 Moderate sparkers
 Domino sparkers