PENELLOPE: The ESO data legacy program to complement the Hubble UV Legacy Library of Young Stars (ULLYSES): I. Survey presentation and accretion properties of Orion OB1 and σ-Orionis
AccretionAccretion disksProtoplanetary disksStars: pre-main sequenceStars: variables: T TauriHerbig Ae/BeAstrophysics - solar and stellar astrophysicsAstrophysics - Earth and planetary astrophysics

