Friday, October 20, 2023

Dark Nebula LDN 1622

Dark Nebula LDN 1622
Click the image for higher resolution (1.8 MB)

The shadowy clouds of Lynds' Dark Nebula (LDN) 1622 are pictured in this observation from the Nicholas U. Mayall 4-meter Telescope at Kitt Peak National Observatory (KPNO), a Program of NSF's NOIRLab. This image was captured in 2018 by the Mosaic-3 instrument, a wide-field camera used to capture large swaths of the night sky from Kitt Peak in Arizona. Mosaic-3 has since been retired to make way for the Dark Energy Spectroscopic Instrument (DESI), the most powerful multi-object survey spectrograph in the world. This swap highlights one of the benefits of ground-based astronomy: the ability to upgrade and replace instruments as new technologies become available.
LDN 1622 is a dark nebula, so called because these dense interstellar clouds of gas and dust blot out light from background objects, appearing as ink-dark clouds against a backdrop of stars. This enigmatic cosmic cloud lies 1300 light-years from Earth in the nearby Orion complex, a star-forming region thronging with young stars and other dark nebulae.
This observation was taken before the 2022 Contreras Fire, which affected KPNO.
Image Credit: KPNO/NOIRLab/NSF/AURA/T. A. Rector Image processing: T.A. Rector (University of Alaska Anchorage/NSF's NOIRLab), M. Zamani (NSF’s NOIRLab) & D. de Martin (NSF's NOIRLab)
Image enhancement: Jean-Baptiste Faure

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