Does this galaxy have tidal debris? Could someone add more examples of tidal debris
by ElisabethB moderator
Copied from the "Examples" on the classifying page :
Now you can look at the larger picture - if the galaxy is colliding with another, click "merger." If there's no visible second system, but long streams of stars or gas are visible then click "tidal debris." "Both" and "Neither" are your other options.