# OCA:List of common spaceships in HighLife

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This is a **list of the most common spaceships** in HighLife, specifically Catagolue's B36/S23/C1 census. The patterns in this table beyond row 5 are only approximately ranked, as they all occur very infrequently so it is difficult to generate accurate estimates of their occurrence. The **approximate relative frequency** column gives an estimate of the proportion of all randomly-occurring spaceships that will be of the given type.

Rank | Pattern | Period | Heat | Speed | Minimum # of cells | Approximate relative frequency (out of 1.00) |
---|---|---|---|---|---|---|

1 | Glider | 4 | 4 | c/4 diagonal | 5 | 0.9963 |

2 | Lightweight spaceship | 4 | 11 | 2c/4 orthogonal | 9 | 0.002442 |

3 | Bomber | 48 | ? | c6/48 diagonal | 19 | 0.0005962 |

4 | Middleweight spaceship | 4 | 15 | 2c/4 orthogonal | 11 | 0.0005886 |

5 | Heavyweight spaceship | 4 | 19 | 2c/4 orthogonal | 13 | 0.00006536 |