Dark Shrouds in Orion

Noirlab_iotw2325a_1024

noirlab_iotw2325a June 21st, 2023

Credit: KPNO/NOIRLab/NSF/AURA/T. A. RectorImage processing: T.A. Rector (University of Alaska Anchorage/NSF’s NOIRLab), M. Zamani (NSF’s NOIRLab) & D. de Martin (NSF’s NOIRLab)

The shadowy clouds of 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.

Provider: NOIRLab

Image Source: https://noirlab.edu/public/images/iotw2325a/

Curator: NSF's NOIRLab, Tucson, AZ, USA

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details Image Details

Image Type
Observation
Object Name
LDN 1622
Noirlab_iotw2325a_128
 

Position Details Position Details

Position (ICRS)
RA = 5h 54m 29.3s
DEC = 1° 48’ 28.5”
Orientation
North is 180.0° CW
Field of View
36.6 x 37.6 arcminutes
Constellation
Orion

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Cyan KPNO-4m (Mosaic-3) Optical (g) 474.0 nm
Orange KPNO-4m (Mosaic-3) Optical (i) 772.0 nm
Red KPNO-4m (Mosaic-3) Optical (H Alpha) 657.0 nm
Spectrum_base
Cyan
Orange
Red
Noirlab_iotw2325a_1280
×
ID
iotw2325a
Subject Category
Subject Name
LDN 1622
Credits
KPNO/NOIRLab/NSF/AURA/T. A. RectorImage processing: T.A. Rector (University of Alaska Anchorage/NSF’s NOIRLab), M. Zamani (NSF’s NOIRLab) & D. de Martin (NSF’s NOIRLab)
Release Date
2023-06-21T12:00:00
Lightyears
Redshift
Reference Url
https://noirlab.edu/public/images/iotw2325a/
Type
Observation
Image Quality
Distance Notes
Facility
Nicholas U. Mayall 4-meter Telescope, Nicholas U. Mayall 4-meter Telescope, Nicholas U. Mayall 4-meter Telescope
Instrument
Mosaic-3, Mosaic-3, Mosaic-3
Color Assignment
Cyan, Orange, Red
Band
Optical, Optical, Optical
Bandpass
g, i, H Alpha
Central Wavelength
474, 772, 657
Start Time
Integration Time
Dataset ID
None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
88.6219277725, 1.80791294583
Reference Dimension
3513.0, 3609.0
Reference Pixel
1757.0, 1804.0
Scale
-0.000173588203073433, 0.000173580934781516
Rotation
-179.98691187797
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
NSF's NOIRLab
URL
https://noirlab.edu
Name
Email
Telephone
Address
950 North Cherry Ave.
City
Tucson
State/Province
AZ
Postal Code
85719
Country
USA
Rights
Creative Commons Attribution 4.0 International License
Publisher
NSF's NOIRLab
Publisher ID
noirlab
Resource ID
iotw2325a
Metadata Date
2023-06-14T19:07:07+02:00
Metadata Version
1.1
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Detailed color mapping information coming soon...

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There is no distance meta data in this image.

 

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