The 2021 Outburst of BL Lacertae

BL Lacerate is the prototype object for the BL Lac class of Active Galactic Nuclei (AGN). The most recent outburst of BL Lac occurred in the summer of 2021. The 0.9 and 0.3-meter telescopes at the Brigham Young University West Mountain Observatory were utilized to secure photometry of the event in standard Johnson/Cousins B, V, and R filters from May 2021 through September 2021. This presentation details variations spanning the event and includes several nights of time series photometry showing significant variation within periods of less than an hour.