Helix Nebula ghost of kiev They are star-formation factories

They are star-formation factories

no LP filter

which can form a big cloud within which the galaxies are orbiting

Below here is original comment by Adrien to this image

Near the top of the mosaic

Helix Nebula ghost of kiev They are star-formation factoriesThe Helix Nebula, located about 700 light years away in the constellation Aquarius, is a stunning example of a planetary nebula. This colorful and intricate image of the Helix Nebula was captured using two powerful telescopes: the Advanced Camera for Surveys aboard NASA ESA Hubble Space Telescope and the Mosaic II Camera on the 4 meter telescope at Cerro Tololo Inter American Observatory in Chile. The Helix Nebula is so large that both telescopes were