Hubble's Tuning Fork Diagram (A Classification Scheme)
| N o r m a l S p i r a l s | |||||||
| Sa (NGC1357) | Sb (M81) | Sc (NGC3184) | |||||
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| Ellipticals | (Irregulars) | ||||||
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| E0 (M87) | E4 (NGC1339) | E7 (NGC4342) |
S0/SB0(NGC2787) |
SMC | |||
Click here for an image of a peculiar galaxy (not irregular) which doesn't fit into Hubble's sequence. Click here for another. |
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| SBa (NGC357) | SBb(NGC1300) | SBc(NGC1365) | |||||
| B a r r e d S p i r a l s | |||||||