The BautzâMorgan classification was developed in 1970 by Laura P. Bautz and William Wilson Morgan to categorize galaxy clusters based on their morphology. [1] It defines three main types: I, II, and III. Intermediate types (I-II, II-III) are also allowed. A type IV was initially proposed, but later redacted before the final paper was published. [2]
Example | Type | Notes | |
---|---|---|---|
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Abell 2199 | Type I | |
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Abell S740 | Type I-II | |
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Coma Cluster | Type II | |
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Abell 1689 | Type II-III | |
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Virgo Cluster | Type III | |
Type IIIS | |||
Type IIIE |
The BautzâMorgan classification was developed in 1970 by Laura P. Bautz and William Wilson Morgan to categorize galaxy clusters based on their morphology. [1] It defines three main types: I, II, and III. Intermediate types (I-II, II-III) are also allowed. A type IV was initially proposed, but later redacted before the final paper was published. [2]
Example | Type | Notes | |
---|---|---|---|
![]() |
Abell 2199 | Type I | |
![]() |
Abell S740 | Type I-II | |
![]() |
Coma Cluster | Type II | |
![]() |
Abell 1689 | Type II-III | |
![]() |
Virgo Cluster | Type III | |
Type IIIS | |||
Type IIIE |