[8] Mary Doris Applegate Beach discovered that AB Aurigae is a variable star by examining 150 photographic plates taken between 1914 and 1921.

[13] It may recently have encountered a dense cloudlet, which disrupted its debris disk and produced an additional reflection nebula.

[14] In 2017 scientists used the Atacama Large Millimeter/submillimeter Array (ALMA) to take an image of the protoplanetary disk around AB Aurigae.

[3] The outer planet was still not detected as in 2022, putting an upper limit on is mass at 3–4 MJ, inconsistent with the spiral structures observed in the disk.

[17] Evidence for unstable disk regions transforming into companions, possibly supporting such a formation of AB Aurigae b was reported in a Nature paper published in September 2024.