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Explanation: Intense ultraviolet light from massive, hot stars in the Orion region has sculpted and compressed clouds of dust and gas in to distinctively shaped Cometary Globules. Seen in this IRAS infrared image recorded at a wavelength sensitive to emission from dust, the elongated globules are easily visible along with a bright region which corresponds to the Trapezium star cluster. Otherwise known as the Witch Head Nebula, IC 2118 is the string of globules near the middle right. Suggestively similar to comets in general appearance only, Cometary Globules are interstellar condensations on a vastly different scale. These are likely related to star formation episodes in the Orion molecular cloud. Besides those indicated by the arrows, more comet-shaped clouds or globules are present in this image.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: nebula - dust - Orion - star formation
Publications with words: nebula - dust - Orion - star formation
See also:
- NGC 1893 and the Tadpoles of IC 410
- APOD: 2024 January 31 Á Camera Orion Rising
- APOD: 2024 January 29 Á The Pleiades: Seven Dusty Sisters
- APOD: 2024 January 23 Á Deep Nebulas: From Seagull to California
- APOD: 2024 January 16 Á The Orion You Can Almost See
- Star Factory Messier 17
- NGC 7023: The Iris Nebula