A million galaxies in a survey of 1/20th of sky (I suspect, haven't run the numbers) manages to get most of the galaxies in our local Pisces–Cetus Supercluster

A million galaxies in a survey of 1/20th of sky (I suspect, haven't run the numbers) manages to get most of the galaxies in our local Pisces–Cetus Supercluster Complex [1] that fall within the field of view, especially if the survey is pointed towards a less dense part of the PCSC. Since the supercluster complex is a galaxy filament [2], galaxies in the next nearest supercluster complex will be much farther away - just like the nearest star in the Andromeda galaxy is going to be orders of magnitude further away than the furthest star in the Milky Way (see artistic rendering in the Wiki page in [2]). Throw in gravitational lensing and the data becomes much noisier the further out you go [3]. [1] https://en.wikipedia.org/wiki/Pisces%E2%80%93Cetus_Supercluster_Complex https://en.wikipedia.org/wiki/Pisces%E2%80%93Cetus_Superclus... [2] https://en.wikipedia.org/wiki/Galaxy_filament https://en.wikipedia.org/wiki/Galaxy_filament [3] http://spiff.rit.edu/classes/ladder/lectures/wars/wars.html http://spiff.rit.edu/classes/ladder/lectures/wars/wars.html