Middleweight volcano

	Middleweight volcano
	<a href="/wiki/File:Middleweightvolcano.png" class="image" title="Middleweight volcano image"><img alt="Middleweight volcano image" src="/w/images/0/07/Middleweightvolcano.png" decoding="async" width="121" height="105" /></a>
	<a href="/wiki/File:Middleweightvolcano.png" class="image" title="Middleweight volcano image"><img alt="Middleweight volcano image" src="/w/images/0/07/Middleweightvolcano.png" decoding="async" width="121" height="105" /></a>
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Pattern type	Oscillator
Family	Volcano
Number of cells	47
Bounding box	13×13
Period	5
Mod	5
Heat	16.4
Volatility	0.46
Strict volatility	0.46
Discovered by	Dean Hickerson
Year of discovery	1992
Rules
Outer-totalistic rules	B3/S23 – B38/S237
Important rules	Conway Life
# of rules	22 = 4
Isotropic rules	B3-cj/S23-ay – B2in34ce5acjn6en7c8/S234-aiknr5acenq6-ac7
Pattern files
Plaintext	middleweightvolcano.cells
RLE	middleweightvolcano.rle
Identifiers
apgcode	xp5_4aab97f79baicz32134b870vi
Pentadecathlon ID	47P5.4

Middleweight volcano is a period 5 oscillator that was found by Dean Hickerson in April 1992 that produces sparks much like a middleweight spaceship.

Image gallery

Generation 2 of middleweight volcano reveals its sparks