Red: BF Eri; Green: the K
control star shifted by +3.5 magnitudes; Brown: the K1
control star shited by +1 magnitude.
The error bars are +/- the 1-sigma statistical uncertainty.
The 2 large peaks for the K1 control star are due to the passage of satellites
right upon it.
BF Eri was brighter the first 2 nights.