Astronomy Picture of the Day
    


NGC 6357: The Lobster Nebula
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NGC 6357: The Lobster Nebula
Credit & Copyright: CTIO/NOIRLab/DOE/NSF/AURA; Processing: T. A. Rector (U. Alaska Anchorage/NSFs NOIRLab), J. Miller (Gemini Obs./NSFs NOIRLab), M. Zamani & D. de Martin (NSFs NOIRLab)
Explanation: Why is the Lobster Nebula forming some of the most massive stars known? No one is yet sure. Cataloged as NGC 6357, the Lobster Nebula houses the open star cluster Pismis 24 near its center -- a home to unusually bright and massive stars. The overall red glow near the inner star forming region results from the emission of ionized hydrogen gas. The surrounding nebula, featured here, holds a complex tapestry of gas, dark dust, stars still forming, and newly born stars. The intricate patterns are caused by complex interactions between interstellar winds, radiation pressures, magnetic fields, and gravity. The image was taken with DOE's Dark Energy Camera on the 4-meter Blanco Telescope at the Cerro Tololo Inter-American Observatory in Chile. NGC 6357 spans about 400 light years and lies about 8,000 light years away toward the constellation of the Scorpion.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
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NASA Official: Jay Norris. Specific rights apply.
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& Michigan Tech. U.

Based on Astronomy Picture Of the Day

Publications with keywords: emission nebula - star formation
Publications with words: emission nebula - star formation
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