Proposal #630

SN 2025rbs is a recently discovered Type Ia supernova in the nearby spiral galaxy NGC 7331, announced by D. O’Neill et al. through the GOTO collaboration. Currently among the brightest supernovae in the sky, SN 2025rbs offers a valuable opportunity to track the photometric evolution of a Type Ia event in detail.

We propose observations, at a frequency of once per night, over the next two months in the B, V, and R bands. This cadence will allow us to monitor the decline from peak brightness, measure color evolution, and contribute to dataset volume for Type Ia light curves.

Accurate photometry of SN 2025rbs will be valuable both for amateur-professional collaborations and for inclusion in broader datasets of well-observed Type Ia supernovae.