POSS2 red planets observed in 1991. K2-24 is in the center of the frame. The white circle shows the extent of the circular aperture used to extract the photometry of K2-24. No stars fall within our aperture that could dilute the light of K2-24. EPIC-203772026 sits just outside the boarder of our aperture. However, with ΔKp = 4.9 (EPIC catalog), it has negligible effect on the transit radius. EPIC-203772026 falls outside of the HIRES slit (width = 0.86 arcsec). We rule out possibility that the observed transits are due to diluted eclipses of EPIC-203772026, because we observe the reflex velocities of K2-24 due to planetary mass companions in our HIRES spectra (see Section 3.3).