A Very Wooly Galaxy

Noirlab_iotw2136a_1024

noirlab_iotw2136a September 8th, 2021

Credit: International Gemini Observatory/NOIRLab/NSF/AURAAcknowledgment: T.A. Rector (University of Alaska Anchorage/NSF NOIRLab), J. Miller (Gemini Observatory/NSF NOIRLab), M. Zamani & D. de Martin (NSF NOIRLab)

This observation from the international Gemini Observatory — a Program of NSF NOIRLab — showcases a flocculent spiral galaxy that lies nearly 12 million light-years away in the constellation Sculptor. The word flocculent means “fluffy” or “wooly,” and refers to these galaxies’ strangely tufty appearance when compared to the elegant spiral arms of galaxies such as Andromeda. The constellation Sculptor lies close to the south Galactic pole. This means that celestial objects within Sculptor — such as NGC 7793 — can be studied by telescopes in Earth’s southern hemisphere, like Gemini South. From its mountaintop perch in the Chilean Andes, Gemini South has a spectacular view of intriguing southern-sky objects such as NGC 7793, the Magellanic Clouds, and the center of the Milky Way.

Provider: NOIRLab

Image Source: https://noirlab.edu/public/images/iotw2136a/

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 7793
Noirlab_iotw2136a_128
 

Position Details Position Details

Position (ICRS)
RA = 23h 57m 39.9s
DEC = -32° 35’ 26.7”
Orientation
North is 180.0° CW
Field of View
5.5 x 4.5 arcminutes
Constellation
Sculptor

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Blue Gemini-S (GMOS-S) Optical (g) 475.0 nm
Red Gemini-S (GMOS-S) Optical (i) 780.0 nm
Orange Gemini-S (GMOS-S) Optical (r) 630.0 nm
Spectrum_base
Blue
Red
Orange
Noirlab_iotw2136a_1280
×
ID
iotw2136a
Subject Category
Subject Name
NGC 7793
Credits
International Gemini Observatory/NOIRLab/NSF/AURAAcknowledgment: T.A. Rector (University of Alaska Anchorage/NSF NOIRLab), J. Miller (Gemini Observatory/NSF NOIRLab), M. Zamani & D. de Martin (NSF NOIRLab)
Release Date
2021-09-08T12:00:00
Lightyears
Redshift
Reference Url
https://noirlab.edu/public/images/iotw2136a/
Type
Observation
Image Quality
Distance Notes
Facility
Gemini South, Gemini South, Gemini South
Instrument
GMOS-S, GMOS-S, GMOS-S
Color Assignment
Blue, Red, Orange
Band
Optical, Optical, Optical
Bandpass
g, i, r
Central Wavelength
475, 780, 630
Start Time
Integration Time
Dataset ID
None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
359.416073434, -32.590748805
Reference Dimension
2245.0, 1845.0
Reference Pixel
1122.5, 922.5
Scale
-4.05662401211e-05, 4.05662401211e-05
Rotation
-180.00000000000006
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
iotw2136a
Metadata Date
2021-09-01T18:01:01+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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