[1][2] The Perseus–Pegasus Filament was discovered by David Batuski and Jack Burns of New Mexico State University in 1985.
[2] It is likely that Clyde W. Tombaugh, of the Lowell Observatory, discovered its existence in 1936 while conducting his search for trans-Saturnian planets.
He reported it as the Great Perseus-Andromeda stratum of Extra-Galactic Nebulae.
[3] Earlier still, parts of this clustering had been reported by Walter E. Bernheimer [de].
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