The stars mapped by the telescope are arranged in concentric rings around the sun, at distances between 16.3 light-years and 49 light-years. This is close enough that telescopes could collect wavelengths of light or "spectra" from planets in the habitable zones of these stars. The habitable zone or "Goldilocks zone" is a region around a star that is neither too hot nor too cold to allow liquid water to exist on a world's surface.
https://www.space.com/nasa-chandra-x-ray-telescope-exoplanet-habitability