Editing Hubble sequence (section)

== External links ==
* {{cite web |title=Introduction to galaxy classification |series=Galaxies and the Universe |url=http://www.astr.ua.edu/keel/galaxies/classify.html }}
* {{cite web |first=T.H. |last=Jarrett |title=Near-Infrared Galaxy Morphology Atlas |publisher=[[California Institute of Technology]] |url=http://www.ipac.caltech.edu/2mass/gallery/galmorph/ }}
* {{cite web |title=Hubble tuning-fork |series=The [[Spitzer Infrared Nearby Galaxies Survey]] (SINGS) |publisher=[[Space Telescope Science Institute]] |url=http://sings.stsci.edu/Publications/sings_poster.html |url-status=dead <!-- presumed --> |archive-url=https://archive.today/20121205083205/http://sings.stsci.edu/Publications/sings_poster.html |archive-date=2012-12-05 }}
* {{cite web |url=http://sings.stsci.edu/ |archive-url=https://web.archive.org/web/20030215191441/http://sings.stsci.edu/ |url-status=dead |archive-date=February 15, 2003 |title=Spitzer Space Telescope Legacy Science Project |series=The Spitzer Infrared Nearby Galaxies Survey (SINGS) |publisher=[[Space Telescope Science Institute]] }}
* {{cite web |url=http://www.galaxyzoo.org/ |website=Galaxy Zoo |title=Galaxy classification participation project }}

[[Category:Edwin Hubble|Sequence]]
[[Category:Astronomical classification systems]]
[[Category:Extragalactic astronomy]]
[[Category:Galaxy morphological types|*]]