Isophote of the original image, Larson-Sekanina filtered, adaptive-laplace filtered and divided by mean radial profile (from left to right) images of comet 81P/Wild2 displaying several coma structures on February 26, 2010. Structures are identified with capital letters, T marks the position of the dust tail. North is up, East is to the left., the field of view is 2.92′ × 1.94′