Haystacks creates high-fidelity spatial and spectral models of complete planetary systems including star, planets, interplanetary dust, and astrophysical background sources. These models are intended for use in simulations of direct imaging and spectroscopy with high-contrast instruments on exoplanet missions to prepare future exoEarth observations.

exoscene simulates direct images of exoplanetary systems. Written in Python, the package has three modules. These modules can determine a planet's relative astrometry ephemeris, its phase function, and flux ratio, compute the band-integrated irradiance of a star, and accurately resample an image model array to a detector array. exoscene also offers modeling and mapping functions and has additional capabilities.