The Phoenix EUV Grid and Stellar UV Spectra (PEGASUS) web application is an innovative tool that allows users to find complete ultraviolet stellar spectra for exoplanet host stars. 

Extreme ultraviolet (EUV) spectra are impossible to observe from stars directly, so PEGASUS uses a robust model to automatically fill in the EUV part of the spectrum based on known stellar parameters. EUV radiation can greatly affect the evolution, atmospheric stability, and habitability of close-orbiting planets. In keeping with NASA’s open science philosophy, the web tool will enable anyone researching exoplanets or stellar physics to easily find the UV spectra they need. 

PEGASUS is currently in beta and will receive more updates soon. To learn more about the tool and try the beta version, visit the new PEGASUS page.