NGC 1499, California Nebula in Ha

December 7, 2021

Narrowband (3 nanometer hydrogen-alpha) crop of the central region of the California Nebula (NGC 1499) in the Constellation Perseus. I used the neural-net based StarNet to remove the stars from the final image. So we're only seeing the trillions of miles of hydrogen, along with dark bands of dust and interstellar debris.