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WISE telescope brings us the ‘Wreath Nebula’

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Yes it looks like a wreath, but actually, it’s called Barnard 3 or IRAS Ring G159.6-18.5. The National Aeronautics and Space Administration’s Wide Field Infrared Explorer staff explains:

The green ring (evergreen) is made of tiny particles of warm dust whose composition is very similar to smog found here on Earth. The red cloud (bow) in the middle is probably made of dust that is more metallic and cooler than the surrounding regions. The bright star in the middle of the red cloud, called HD 278942, is so luminous that it is likely what is causing most of the surrounding ring to glow. In fact its powerful stellar winds are what cleared out the surrounding warm dust and created the ring-shaped feature in the first place. The bright greenish-yellow region left of center (holly) is similar to the ring, though more dense. The bluish-white stars (silver bells) scattered throughout are stars located both in front of, and behind, the nebula.

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