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M66 as observed with the w:Spitzer Space Telescope as part of the SINGS. The image is a four-channel false-color composite, where blue indicates emission at 3.6 micrometers, green corresponds to 4.5 micrometers, and red to 5.8 and 8.0 micrometers. The contribution from starlight (measured at 3.6 micrometers) in this picture has been subtracted from the 5.8 and 8 micrometer images to enhance the visibility of the w:polycyclic aromatic hydrocarbon emissions.
A resolved noncorotating clump of w:H I material apparently removed from one of the w:spiral arms.
This third result shows up visually as an extremely prominent and unusual spiral arm and dust lane structures as originally noted in the w:Atlas of Peculiar Galaxies.[4]
↑G. de Vaucouleurs, A. de Vaucouleurs, H. G. Corwin, R. J. Buta, G. Paturel, P. Fouque (1991). Third Reference Catalogue of Bright Galaxies. New York: Springer-Verlag.{{cite book}}: CS1 maint: multiple names: authors list (link)