Gunstar 2

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Gunstar 2
x = 140, y = 134, rule = B3/S23 27b2o$26b2o$28bo8$96bo$94b3o$93bo$93b2o$98b2o$98bo$96bobo$62b4o30b2o$ 61bo7b2o9bo$61bo3b2o2b2o7bo2b2o$62bo2b2o6b2o2bo4bo$73b2o2bo$77b2o2bo$ 79bobo16b2o$80bo15bo2bo2$96bo2bo37b2o$97bo2bo37b2o$98bobo36bo$99bo$86b 2o$44b2o39b2o11b2o$44b2o41bo10b2o13b2o$109b2obo2bob2o$59bo49b2o2bo4bo$ 45b2o10b6o51bo$43bob2o10b2o2b2o52bobo$43bo53b2o$43bo17bo35b2o$43bo2bo 10b2o2bo$44b2o11b2o3bo$61bo$59bobo33b3o$60bo33bo2$96b2o$90b2o$89b2o5b 2o$90b5o2bo$39b4o48b3o3bo$25bo8b2o7bo14b2o8bo27bo33b2o$25b3o6b2o2b2o3b o4b2o8b2o7bobo24b2o34b2o$28bo9b2o2bo5b2o16bo3bo$21b2o4b2o38bo3bo59bo$ 22bo45bo3bo57bobo$22bobo44bo3bo55bo2bo$23b2o45bobo24b2o29bo2bo$71bo23b ob2o$94bo33bo2bo$56bo40bo32b2o$55b3o35b2obo$55b4o34b2o$58b2o68b2o$55b 4o69b2o$54b3o$52bo$52bob3o3bo$56bo3b2o$59bo$52bo76b2o$52bo74bo2bo$127b o$127bo2b2o2$131bo$31b2o95b4o$31b2o32b3o58b2obo$38bo29bo60b2o$37b3o24b o3bo43bo15bo$29b2o5bo2b2o22bobo2bo43b3o17b2o$29b2o30bo2bobo21b2o22bobo 17b2o$35bo25bo3bo48bo$30bo17b2o11bo24bo3bo37b2o6b2o$29bobo5bo10b2o12b 3o21bo4bo36b2o6bobo$28bo2bo6b2obo46bobobo45bo$27bo2bo6b3o28bo2bo17bobo bo38b2o4b2o$38bo2bo25bo4bo17bo4bo26b4o6bo$27bo2bo8b2o25bo4b2o18bo3bo 21b2o7bo6b3o$29b2o8b2o28b4o44b2o2b2o3bo8bo$62bo3b3o23b2o27b2o2bo$37b3o 26bo5bobo$36bo26bo8bobo$36bo3b2o30bo$40b2o31b2o$37bo$38bo2bo16bo$38b3o 18bo$57b3o$115b2o$115b2o$62b2o29b2o$62b2o29b2o$116b2o$46b2o66bob2o$42b 2obo2bob2o62bo$42b2o2bo4bo51b2o9bo$47bo13b2o40bobo8bo2bo$48bobo8bo2bo 43bo8b2o$94b2o7bo2bo$59bo2bo30b4o3b3o3bo$60bo2bo28b3ob3o3b2obo$61bobo 17bo10b2o9b2o$62bo18b2o$76b2o2bobo$61b2o12bobo$61b2o12bo35bo$75b2obo 33b2o$77b2o7b2o23b2o$86b2o3b4o$90bo7b2o$90bo3b2o2b2o$63b2o26bo2b2o$62b obo$62bo$61b2o$66b2o$67bo$64b3o$64bo3$2bo$2o$b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 28 ZOOM 2 LOOP 168 ]]
Pattern type Gun
Number of cells 363
Bounding box 119×119
Period 168
Barrels 4
Discovered by David Buckingham
Year of discovery Unknown

Gunstar 2 is a four-barreled period 168 glider gun that uses four B-heptominoes/Herschels moving around a period 840 track consisting of four 64-generation turns (R64) and eight 73-generation turns (Lx73). The B-heptominoes make use of Buckingham's transparent block reaction. It was built by David Buckingham sometime before November 20, 1991.[1] It is quite a bit smaller than the standard gunstars and has a period that is not attainable by the standard method of gunstar construction.

References