Kok's galaxy

	Kok's galaxy
	<a href="/wiki/File:Koksgalaxy.png" class="image" title="Kok's galaxy image"><img alt="Kok's galaxy image" src="/w/images/9/9b/Koksgalaxy.png" decoding="async" width="178" height="178" /></a>
	<a href="/wiki/File:Koksgalaxy.png" class="image" title="Kok's galaxy image"><img alt="Kok's galaxy image" src="/w/images/9/9b/Koksgalaxy.png" decoding="async" width="178" height="178" /></a>
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Pattern type	Oscillator
Number of cells	28
Bounding box	13 × 13
Period	8 (mod: Unknown)
Heat	39
Volatility	1.00 \| Unknown
Kinetic symmetry	Unspecified
Discovered by	Jan Kok
Year of discovery	1971
Rules
Outer-totalistic rules	B3/S23 – B37/S238
# of rules	22 = 4
Glider synthesis
Fewest gliders	12
Uploaded synthesis RLE	koksgalaxy_synth.rle
Pattern files
Plaintext	koksgalaxy.cells
RLE	koksgalaxy.rle

Kok's galaxy is a period 8 oscillator found by Jan Kok in 1971. It is notable for its uses as a sparker, and can be seen acting as one in converter 1. In September 2003 Jason Summers found a 12-glider synthesis of this oscillator.^[1]

Kok's galaxy serves as the logo of Golly.

References