The Iris Nebula (NGC 7023), a bright reflection nebula in the constellation Cepheus about 1,300 light years from Earth. The nebula is lit up by the 7th magnitude star SAO 19158, which is the bright object at the center. The bright blues are due to small-particle scattering of light in the nebular material. LRGB color composite made with the WIYN 0.9m + S2KB CCD while dodging clouds on 4 October 2011.
IC 1805: The Heart Distance: 7,500 Light Years Located in the Perseus arm of the Galaxy in the constellation Cassiopeia. This is an emission nebula showing glowing gas and darker dust lanes. The nebula is formed by plasma of ionized hydrogen and free electrons. The nebula’s intense red output and its configuration are driven by the radiation emanating from a small group of stars near the nebula’s
Boomerang Nebula — The Hubble Space Telescope has "caught" the Boomerang Nebula in these new images taken with the Advanced Camera for Surveys. This reflecting cloud of dust and gas has two nearly symmetric lobes (or cones) of matter that are being ejected from a central star... Image Credit: NASA, ESA and The Hubble Heritage Team (STScI/AURA)