2624094

Target RA (J2000): 78.295539855957 and deg Target Dec (J2000): 33.3181610107422 and deg Gaia GMag: 8.461 Programme ID: CH_PR250031 PI of observing programme: Prune august Title of programme: Measuring Albedos for Different Hot JUpiters Abstract: Hot Jupiters offer exceptional opportunities for atmospheric study predominantly carried out with NIR/MIR spectroscopy. However our scientific understanding their cloud properties remains limited and has been shown to affect both transmission and emission spectra significantly. Photometric observations in the optical are necessary to provide better constraints on the reflective properties of the atmosphere improving our understanding of clouds and hazes. We propose observing three hot Jupiters--TOI 1518 b KELT-7 b and HD 202772 Ab. These planets orbit bright stars (G ~ 8) making them ideal CHEOPS targets. Their similar characteristics allow exploration of how varying temperatures influence atmospheric properties complementing existing geometric albedo data. This effort aims to complement the sample of hot Jupiters with measured geometric albedos furthering our understanding of atmospheric dynamics across these systems and ultimately improving interpretation of their composition and evolution. [truncated! Please see actual data for full text]