The irregular dwarf galaxy IC 1613 — excerpt from the Dark Energy Survey

Noirlab_noirlab2106b_1024

noirlab_noirlab2106b January 14th, 2021

Credit: DES/DOE/Fermilab/NCSA & CTIO/NOIRLab/NSF/AURAAcknowledgments: Image processing: DES, Jen Miller (Gemini Observatory/NSF's NOIRLab), Travis Rector (University of Alaska Anchorage), Mahdi Zamani & Davide de Martin

The irregular dwarf galaxy IC 1613 contains some 100 million stars and is a member of our Local Group of galaxies, which also includes our Milky Way, the Andromeda spiral galaxy, and the Magellanic Clouds. It is at a distance of 2.4 million light-years and contains several examples of Cepheid variable stars — key calibrators of the cosmic distance ladder. The bulk of its stars were formed about 7 billion years ago and it does not appear to be undergoing star formation at the present day, unlike other very active dwarf irregulars such as the Large and Small Magellanic clouds. To the lower right of IC 1613, one may view a background galaxy cluster (several hundred times more distant than IC 1613) consisting of dozens of orange-yellow blobs, centered on a pair of giant cluster elliptical galaxies. To the left of the irregular galaxy is a bright, sixth magnitude, foreground, Milky Way star in the constellation of Cetus the Whale, identified here as a star by its sharp diffraction spikes radiating at 45-degree angles.  This image is an excerpt from the Dark Energy Survey, which has released a massive, public collection of astronomical data and calibrated images from six years of work. The Dark Energy Survey is a global collaboration that includes the Department of Energy's (DOE) Fermi National Accelerator Laboratory (Fermilab), the National Center for Supercomputing Applications (NCSA), and NSF’s NOIRLab. The image was taken with the Dark Energy Camera, fabricated by DOE, on the Víctor M. Blanco 4-meter Telescope. The immensity and depth of the survey can be appreciated by diving into the zoomable version of this wider excerpt. 

Provider: NOIRLab

Image Source: https://noirlab.edu/public/images/noirlab2106b/

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

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
IC 1613
Noirlab_noirlab2106b_128
 

Position Details

Position (ICRS)
RA = 1h 5m 0.0s
DEC = 2° 8’ 57.1”
Orientation
North is 90.0° CCW
Field of View
37.2 x 20.6 arcminutes
Constellation
Cetus

Color Mapping

  Telescope Spectral Band Wavelength
Red Blanco-4m (DECam) Optical (I) 785.0 nm
Yellow Blanco-4m (DECam) Optical (R) 644.0 nm
Green Blanco-4m (DECam) Optical (R) 644.0 nm
Blue Blanco-4m (DECam) Optical (G) 474.0 nm
Spectrum_base
Red
Yellow
Green
Blue
Noirlab_noirlab2106b_1280
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ID
noirlab2106b
Subject Category
Subject Name
IC 1613
Credits
DES/DOE/Fermilab/NCSA & CTIO/NOIRLab/NSF/AURAAcknowledgments: Image processing: DES, Jen Miller (Gemini Observatory/NSF's NOIRLab), Travis Rector (University of Alaska Anchorage), Mahdi Zamani & Davide de Martin
Release Date
2021-01-14T09:00:00
Lightyears
Redshift
Reference Url
https://noirlab.edu/public/images/noirlab2106b/
Type
Observation
Image Quality
Distance Notes
Facility
Víctor M. Blanco 4-meter Telescope, Víctor M. Blanco 4-meter Telescope, Víctor M. Blanco 4-meter Telescope, Víctor M. Blanco 4-meter Telescope
Instrument
DECam, DECam, DECam, DECam
Color Assignment
Red, Yellow, Green, Blue
Band
Optical, Optical, Optical, Optical
Bandpass
I, R, R, G
Central Wavelength
785, 644, 644, 474
Start Time
Integration Time
Dataset ID
None, None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
16.2501996566, 2.14919836798
Reference Dimension
8471.0, 4691.0
Reference Pixel
4235.5, 2345.5
Scale
-7.31027202242e-05, 7.31027202242e-05
Rotation
90.020000000000024
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
noirlab2106b
Metadata Date
2021-01-08T10:46:46+01:00
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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