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Mona Evans
Mona Evans • 30 weeks ago

Rosette Nebula (NGC 2237). (Image: Adam Block & Tim Puckett) The red color is hydrogen gas energized by a hot star - it's an emission nebula. The “stem” is formed by a trail of the same glowing hydrogen gas. The nebula is 5000 light years away in the constellation Monoceros.Mona Evans "Monoceros the Unicorn" www.bellaonline.c...

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What surrounds a hotbed of star formation? In the case of the Orion Nebula -- dust. The entire Orion field, located about 1600 light years away, is inundated with intricate and picturesque filaments of dust. Opaque to visible light, dust is created in the outer atmosphere of massive cool stars and expelled by a strong outer wind of particles. The Trapezium and other forming star clusters are embedded in the nebula. The intricate filaments of dust surrounding M42 and M43 appear brown in the above image, while central glowing gas is highlighted in red. Over the next few million years much of Orion's dust will be slowly destroyed by the very stars now being formed, or dispersed into the Galaxy.

In the Center of the Trifid Nebula (a star forming region toward the constellation of the Archer. In the center, the three prominent dust lanes that give the Trifid its name all come together. A single massive star near the center causes much of the glow).