APOD from 2025-07-04
NGC 6946 and NGC 6939
Over 68 hours of Earth-based #telescope imaging reveals spiral #galaxy NGC 6946 and star cluster NGC 6939 in Cepheus. Spanning 1 degree, NGC 6939 lies 5,600 light-years away, while NGC 6946 is 22 million light-years distant and known for frequent supernovae, earning it the name The Fireworks Galaxy.
HD image at https://apod.nasa.gov/apod/ap250704.html#space #astronomy #planet #earth