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  • Mona Evans

    Bright stars outline the familiar shape of the Christmas Tree Cluster in this visible-light image, which has been rotated 180°. Another famous structure, called the Cone Nebula, sits atop the tree. It's located in the constellation Monoceros. (Image: NOAO/AURA/NSF) Mona Evans "Monoceros the Unicorn" http://www.bellaonline.com/articles/art182324.asp

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Concept: Bryan Brunsell Phote Credits: Eyes, Suren Manvelyan. Nebulas, Hubble Site

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NGC 2264 contains the Christmas Tree Cluster and the Cone Nebula. (They're at the top of the picture.) (Credit: J-P Metasavainio) Mona Evans, "Christmas in the Skies" www.bellaonline.c...

NGC 6188 is an emission nebula located about 4,000 light years away in the constellation Ara. The bright open cluster NGC 6193, visible to the naked eye, is responsible for a region of reflection nebulosity within NGC 6188.

The Witch Head Nebula. It glows from light reflected from bright supergiant Rigel - Orion's left foot! Although Rigel is blue, the nebula is blue because the dust tends to absorb the red part of the light and reflect the blue. (Image: George Greany)

Ground-Based Image of Carina Nebula (NGC 3372)

Sharpless 2-106, Sh2-106 or S106 for short, lies nearly 2,000 light-years from us. The nebula measures several light-years in length. It appears in a relatively isolated region of the Milky Way galaxy. A massive, young star, IRS 4 (Infrared Source 4), is responsible for the furious activity we see in the nebula. Twin lobes of super-hot gas, glowing blue in this image, stretch outward from the central star. This hot gas creates the “wings” of our angel. A ring of dust and gas orbiting the s

The "Peony Nebula," as discovered by NASA's Spitzer Space Telescope. This three color infrared composite shows 3.6-micrometre light in blue, 8-micrometre light in green, and 24-micrometre light in red. The Peony nebula is the reddish cloud of dust in and around the white circle, surrounding the Peony nebular star.

The Rosette Nebula: A rose from a a bunch of hot young stars.

IC 1396: Emission Nebula in Cepheus Image Credit: Digitized Sky Survey, ESA/ESO/NASA FITS Liberator Color Composite: Davide De Martin (Skyfactory)

Hubble's Variable Nebula (NGC 2261) - Named for American astronomer Edwin P Hubble, this nebula is lit by the star R Monocerotis, bottom of nebula, in the constellation Monoceros (Greek : unicorn). There is probably a symmetrical counterpart of the fan-shape on the southern side of the star, but it is heavily obscured from view by dust lying between this lobe and our line of sight