As usual on spiral galaxies of the Virgo Cluster , in the rest of the disk both star formation and neutral hydrogen , of which M100 is deficient compared to isolated spirals of similar Hubble type , are truncated within the galaxy 's disk , which is caused by interactions with the intracluster medium of Virgo .
As usual on spiral galaxies of the Virgo Cluster , in the rest of the disk both star formation and neutral hydrogen are reduced in the galaxy 's disk , something caused by interactions in the Virgo cluster .