Download Image of the Crescent Nebula (NGC 6888), a ring nebula associated with a galactic Wolf-Rayet star, in which significant temperature variations have been observed in the gas it contains. Credit: Daniel López / IAC Created at 16/05/2023 Authors Daniel López Credits Instituto de Astrofísica de Canarias (IAC) Type: image Category Astronomical images Astrophysics Science and Technology Stellar & Interstellar Physics (FEEI) Planetary nebulae