HST images of HH 30 spanning 18 epochs from 1994 March to 2005 January. Each image in a given column is from the same epoch. Each image in a given row is in the same filter, except that F547M and F555W, and F606W, F625W, and F675W share the same rows. Each image is labeled with the filter and camera used. PC1 images have been smoothed with a ﹩2\times 2﹩ boxcar filter to suppress noise. The images have been aligned by eye. The cross marks the center of the dust lane, although models suggest that the star is located closer to the brighter nebula. Contours are spaced every 0.75 mag from 22.0 (F439W), 21.0 (F547M or F555W), 20.0 (F606W, F675W, or F625W), 19.5 (F814W), 19.0 (F110W), 17.5 (F160W), or 17.0 (F204M) mag arcsec⁻². The top left panel shows the subapertures used to quantify the asymmetry in the nebulae.