Simulated Roman observation

Simulated Roman observation
Simulated Roman observation The Andromeda Galaxy superimposed with the footprint of what would the NASA Nancy Grace Roman Space Telescope's detector would cover in a single observation (white squares) compared to the NASA/ESA Hubble Space Telescope's footprint (red square) and entire survey of Hubble's (cyan outline). The Moon is also shown for scale against the night sky. NASA's Goddard Space Flight Center; Digitized Sky Survey and R. Gendler; NASA / GSFC / ASU / Lunar Reconnaissance Orbiter