The Caldwell catalog lists enticing celestial objects to expand amateur astronomers’ cosmic horizons. From nearby clouds of gas and dust that are left over from dying stars to remote galaxies that formed billions of years ago, the Caldwell catalog is brimming with surprising celestial treats, many of which the Hubble Space Telescope has observed.
Click here for original story, New Hubble Gallery Features Celestial Objects From Caldwell Catalog Visible to Amateur Astronomers
Source: NASA Goddard Center