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[[File:HubbleTuningFork.jpg|thumb|right|295px|Classification into [[Spiral galaxy|spirals]] and [[Elliptical galaxy|ellipticals]].]]
The '''Hubble sequence''' is a scheme for classifying [[galaxies]].<ref name=spacetelescope>[https://www.spacetelescope.org/images/heic9902o/ The Hubble tuning fork diagram] from spacetelescope.org</ref> Developed in 1926 by [[Edwin Hubble]], it splits galaxies into two major groups: [[elliptical galaxy|elliptical galaxies]] and [[spiral galaxy|spiral galaxies]]. Nowadays, it is understood to be too simple a classification scheme. It is sometimes called the "Hubble tuning fork diagram" due to its resemblance to a tuning fork.
The '''Hubble sequence''' is a scheme for classifying [[galaxies]].<ref name=spacetelescope>[https://www.spacetelescope.org/images/heic9902o/ The Hubble tuning fork diagram] from spacetelescope.org</ref> Developed in 1926 by [[Edwin Hubble]], it splits galaxies into two major groups: [[elliptical galaxy|elliptical galaxies]] and [[spiral galaxy|spiral galaxies]]. Nowadays, it is understood to be too simple a classification scheme. It is sometimes called the "Hubble tuning fork diagram" due to its resemblance to a tuning fork.