"Early" Hubble types are top, "late" bottom in this diagram. For spirals, "Bar" structures move a galaxy to the right.

As almost all galaxies, the 40 galaxies in Messier's catalog, including M102 (NGC 5866), plus the two "surplus" galaxies M51B (NGC 5195) and M109B (NGC 3953) find their place in the Hubble type diagram, as shown below.

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	M110, E6pec
	M59, E5
	M49, E4
	M32, cE2 M60, E2
	M87, E1 M105, E1
	M89, E0
M84, S0+ M86, S0+ M85, S0(s)+ M102, S0_3
M104, Sa	M65, SABa
M81, Sab M94, S(r)ab M64, Sab	M77, SABab M90, SABab M96, SABab M98, SABab
M31, Sb M88, Sb	M58, SABb M66, SABb	M91, SBb M95, SBb
M63, Sbc M51, Sbc	M100, SABbc M106, SABbc M61, SABbc	M109, SBbc M109B, SBbc
M74, Sc M99, Sc	M83, SABc
M33, Scd	M101, SABcd	M108, SBcd
	M82, Ir-II M51B, Pec

Last Modification: February 4, 2014