A Dorado’s Scale

Noirlab_iotw2210a_1024

noirlab_iotw2210a March 9th, 2022

Credit: Dark Energy Survey/DOE/FNAL/DECam/CTIO/NOIRLab/NSF/AURAImage processing: T.A. Rector (University of Alaska Anchorage/NSF NOIRLab), J. Miller (Gemini Observatory/NSF NOIRLab), M. Zamani & D. de Martin (NSF NOIRLab)

This Image of the Week features a sky speckled with stars and galaxies. The most prominent galaxy, in the upper right quadrant of the image, is known as NGC 1703. It was observed using the Dark Energy Camera (DECam), a high-performance camera installed by the US Department of Energy at the Víctor M. Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory (CTIO), a Program of NSF NOIRLab. NGC 1703 lies in a region of the sky that constitutes the constellation Dorado, the dolphinfish. You may know this fish by its Hawaiian name, mahi-mahi. The constellation was named Dorado back in the 16th century and the name was made official in the early 20th century. It is one of the 88 astronomical constellations recognized by the International Astronomical Union. So NGC 1703 could fancifully be thought of as one of the Dorado’s more impressive scales. Use the interactive zoom tool to explore the thousands of background galaxies, each with billions of stars like our Sun. 

Provider: NOIRLab

Image Source: https://noirlab.edu/public/images/iotw2210a/

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
NGC 1703
Noirlab_iotw2210a_128
 

Position Details Position Details

Position (ICRS)
RA = 4h 53m 14.4s
DEC = -59° 47’ 20.2”
Orientation
North is 0.1° CCW
Field of View
23.0 x 15.7 arcminutes
Constellation
Dorado

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Red Blanco-4m (DECam) Optical (i) 785.0 nm
Green Blanco-4m (DECam) Optical (r) 646.0 nm
Blue Blanco-4m (DECam) Optical (g) 486.0 nm
Spectrum_base
Red
Green
Blue
Noirlab_iotw2210a_1280
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ID
iotw2210a
Subject Category
Subject Name
NGC 1703
Credits
Dark Energy Survey/DOE/FNAL/DECam/CTIO/NOIRLab/NSF/AURAImage processing: T.A. Rector (University of Alaska Anchorage/NSF NOIRLab), J. Miller (Gemini Observatory/NSF NOIRLab), M. Zamani & D. de Martin (NSF NOIRLab)
Release Date
2022-03-09T12:00:00
Lightyears
Redshift
Reference Url
https://noirlab.edu/public/images/iotw2210a/
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
Instrument
DECam, DECam, DECam
Color Assignment
Red, Green, Blue
Band
Optical, Optical, Optical
Bandpass
i, r, g
Central Wavelength
785, 646, 486
Start Time
Integration Time
Dataset ID
None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
73.3099719729, -59.7889310951
Reference Dimension
5246.0, 3577.0
Reference Pixel
2623.0, 1788.5
Scale
-7.30965432836e-05, 7.30965432836e-05
Rotation
0.06
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
iotw2210a
Metadata Date
2022-02-11T02:22:50+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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