Quasar

Quasar is a period-3 oscillator that was found by Robert Wainwright in August 1971,[1] and is just the second smallest of an extensible series of p3 oscillators (first being the pulsar) built using pulsar quadrants which are shifted with respect to each other.

Quasar
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html> 10b3o3b3o10b2$8bo4bobo4bo8b$8bo4bobo4bo8b$8bo4bobo4bo8b$10b3o3b3o10b2$ 8b3o7b3o8b$2b3o2bo4bo3bo4bo2b3o2b$7bo4bo3bo4bo7b$o4bobo4bo3bo4bobo4bo$ o4bo17bo4bo$o4bo2b3o7b3o2bo4bo$2b3o19b3o2b2$2b3o19b3o2b$o4bo2b3o7b3o2b o4bo$o4bo17bo4bo$o4bobo4bo3bo4bobo4bo$7bo4bo3bo4bo7b$2b3o2bo4bo3bo4bo 2b3o2b$8b3o7b3o8b2$10b3o3b3o10b$8bo4bobo4bo8b$8bo4bobo4bo8b$8bo4bobo4b o8b2$10b3o3b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] <nowiki>#C [[ ZOOM 12 THUMBSIZE 2 GPS 2 WIDTH 480 HEIGHT 480 ]]</nowiki> <html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html> <html></noscript></canvas></div></html>
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Pattern type Oscillator
Number of cells 144
Bounding box 31×31
Period 3
Mod 3
Heat 128
Volatility 0.73
Strict volatility 0.73
Rotor type Pulsar
Discovered by Robert Wainwright
Year of discovery 1971

Here are the next 2 oscillators in the series:

<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 45, y = 45, rule = B3/S23 18b3o3b3o2$16bo4bobo4bo$16bo4bobo4bo$16bo4bobo4bo$18b3o3b3o2$16b3o7b3o $10b3o2bo4bo3bo4bo2b3o$15bo4bo3bo4bo$8bo4bobo4bo3bo4bobo4bo$8bo4bo17bo 4bo$8bo4bo2b3o7b3o2bo4bo$10b3o19b3o2$8b3o23b3o$2b3o2bo4bo19bo4bo2b3o$ 7bo4bo19bo4bo$o4bobo4bo19bo4bobo4bo$o4bo33bo4bo$o4bo2b3o23b3o2bo4bo$2b 3o35b3o2$2b3o35b3o$o4bo2b3o23b3o2bo4bo$o4bo33bo4bo$o4bobo4bo19bo4bobo 4bo$7bo4bo19bo4bo$2b3o2bo4bo19bo4bo2b3o$8b3o23b3o2$10b3o19b3o$8bo4bo2b 3o7b3o2bo4bo$8bo4bo17bo4bo$8bo4bobo4bo3bo4bobo4bo$15bo4bo3bo4bo$10b3o 2bo4bo3bo4bo2b3o$16b3o7b3o2$18b3o3b3o$16bo4bobo4bo$16bo4bobo4bo$16bo4b obo4bo2$18b3o3b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 10 THUMBSIZE 2 GPS 2 WIDTH 540 HEIGHT 540 AUTOSTART LOOP 3 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 61, y = 61, rule = B3/S23 26b3o3b3o2$24bo4bobo4bo$24bo4bobo4bo$24bo4bobo4bo$26b3o3b3o2$24b3o7b3o $18b3o2bo4bo3bo4bo2b3o$23bo4bo3bo4bo$16bo4bobo4bo3bo4bobo4bo$16bo4bo 17bo4bo$16bo4bo2b3o7b3o2bo4bo$18b3o19b3o2$16b3o23b3o$10b3o2bo4bo19bo4b o2b3o$15bo4bo19bo4bo$8bo4bobo4bo19bo4bobo4bo$8bo4bo33bo4bo$8bo4bo2b3o 23b3o2bo4bo$10b3o35b3o2$8b3o39b3o$2b3o2bo4bo35bo4bo2b3o$7bo4bo35bo4bo$ o4bobo4bo35bo4bobo4bo$o4bo49bo4bo$o4bo2b3o39b3o2bo4bo$2b3o51b3o2$2b3o 51b3o$o4bo2b3o39b3o2bo4bo$o4bo49bo4bo$o4bobo4bo35bo4bobo4bo$7bo4bo35bo 4bo$2b3o2bo4bo35bo4bo2b3o$8b3o39b3o2$10b3o35b3o$8bo4bo2b3o23b3o2bo4bo$ 8bo4bo33bo4bo$8bo4bobo4bo19bo4bobo4bo$15bo4bo19bo4bo$10b3o2bo4bo19bo4b o2b3o$16b3o23b3o2$18b3o19b3o$16bo4bo2b3o7b3o2bo4bo$16bo4bo17bo4bo$16bo 4bobo4bo3bo4bobo4bo$23bo4bo3bo4bo$18b3o2bo4bo3bo4bo2b3o$24b3o7b3o2$26b 3o3b3o$24bo4bobo4bo$24bo4bobo4bo$24bo4bobo4bo2$26b3o3b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 THUMBSIZE 2 GPS 2 WIDTH 540 HEIGHT 540 AUTOSTART LOOP 3 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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Like the pulsar, each quadrant can be made with a traffic light predecessor. This gives these predecessors:

<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 121, y = 108, rule = B3/S23 88b3o3b3o$88bobo3bobo$88b3o3b3o4$86b3o7b3o$86bobo7bobo$16b3o3b3o55b3o 3b3o7b3o3b3o$16bobo3bobo55bobo19bobo$16b3o3b3o55b3o19b3o4$16b3o3b3o55b 3o19b3o$16bobo3bobo55bobo19bobo$16b3o3b3o55b3o3b3o7b3o3b3o$86bobo7bobo $86b3o7b3o4$88b3o3b3o$88bobo3bobo$88b3o3b3o27$88b3o3b3o$88bobo3bobo$ 88b3o3b3o4$86b3o7b3o$86bobo7bobo$16b3o3b3o55b3o3b3o7b3o3b3o$16bobo3bob o55bobo19bobo$16b3o3b3o55b3o19b3o4$14b3o7b3o51b3o23b3o$14bobo7bobo51bo bo23bobo$8b3o3b3o7b3o3b3o39b3o3b3o23b3o3b3o$8bobo19bobo39bobo35bobo$8b 3o19b3o39b3o35b3o4$6b3o23b3o35b3o39b3o$6bobo23bobo35bobo39bobo$3o3b3o 23b3o3b3o23b3o3b3o39b3o3b3o$obo35bobo23bobo51bobo$3o35b3o23b3o51b3o4$ 3o35b3o23b3o51b3o$obo35bobo23bobo51bobo$3o3b3o23b3o3b3o23b3o3b3o39b3o 3b3o$6bobo23bobo35bobo39bobo$6b3o23b3o35b3o39b3o4$8b3o19b3o39b3o35b3o$ 8bobo19bobo39bobo35bobo$8b3o3b3o7b3o3b3o39b3o3b3o23b3o3b3o$14bobo7bobo 51bobo23bobo$14b3o7b3o51b3o23b3o4$16b3o3b3o55b3o19b3o$16bobo3bobo55bob o19bobo$16b3o3b3o55b3o3b3o7b3o3b3o$86bobo7bobo$86b3o7b3o4$88b3o3b3o$ 88bobo3bobo$88b3o3b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 4 THUMBSIZE 2 GPS 2 WIDTH 540 HEIGHT 540 AUTOSTART PAUSE 2 T 14 PAUSE 2 LOOP 15 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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The components making up quasars and their relatives do not necessarily need four symmetrical parts stabilising each other. The following is a sample stabilised wick with one 90-degree turn, and above it the smallest version of this wick (which is a 36P3).

<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 98, y = 47, rule = B3/S23 4bo39bo7bo39bo$2b5o35b5o3b5o35b5o$bo5bo2b3o28bo5bobo5bo28b3o2bo5bo$obo bo2bo32bobobo2bobo2bobobo32bo2bobobo$obo4bobo4bo25bobo4bobo4bobo25bo4b obo4bobo$bo2b2o3bo4bo26bo2b2o5b2o2bo26bo4bo3b2o2bo$9bo4bo67bo4bo$10b3o 71b3o2$12b3o67b3o$10bo4bo2b3o55b3o2bo4bo$10bo4bo65bo4bo$10bo4bobo4bo 51bo4bobo4bo$17bo4bo51bo4bo$12b3o2bo4bo51bo4bo2b3o$18b3o55b3o2$20b3o 51b3o$18bo4bo2b3o39b3o2bo4bo$18bo4bo49bo4bo$18bo4bobo4bo35bo4bobo4bo$ 25bo4bo35bo4bo$20b3o2bo4bo35bo4bo2b3o$26b3o39b3o2$28b3o35b3o$26bo4bo2b 3o23b3o2bo4bo$26bo4bo33bo4bo$26bo4bobo4bo19bo4bobo4bo$33bo4bo19bo4bo$ 28b3o2bo4bo19bo4bo2b3o$34b3o23b3o2$36b3o19b3o$34bo4bo2b3o7b3o2bo4bo$ 34bo4bo17bo4bo$34bo4bobo4bo3bo4bobo4bo$41bo4bo3bo4bo$36b3o2bo4bo3bo4bo 2b3o$42b3o7b3o2$44b3o3b3o$42bo4bobo4bo$42bo4bobo4bo$42bo4bobo4bo2$44b 3o3b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 10 THUMBSIZE 2 GPS 2 WIDTH 1000 HEIGHT 540 AUTOSTART LOOP 3 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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The quasar first appeared semi-naturally in April 2015.[2]

See also

References
  1. Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
  2. gameoflifeboy (April 5, 2015). Re: Soup search results (discussion thread) at the ConwayLife.com forums
  • 144P3.1 at Heinrich Koenig's Game of Life Object Catalogs
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