Pitch angles for the 17 overdensity features found in NGC 2276. Bold and solid lines represent overdensity features in sectors 7 and 8, while the thin and dotted lines represent all the others. The points show the median value of the pitch angle in each of the overdensity features, and the error bars represent the standard deviation. Shaded area shows the highest pitch angle values for the sample of undisturbed galaxies from Bellhouse et al. (2021).