A Grand Design of Imperfections

Noirlab_iotw2347a_1024

noirlab_iotw2347a November 22nd, 2023

Credit: Dark Energy Survey/DOE/FNAL/DECam/CTIO/NOIRLab/NSF/AURAImage processing: R. Colombari and M. Zamani (NSF’s NOIRLab)

With its swirling arms and luminous core, NGC 5364 is unmistakably a spiral galaxy, lying in the constellation Virgo. But it’s not just any spiral galaxy imaged by the Dark Energy Camera (DECam) on the Víctor M. Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory (CTIO), a Program of NSF’s NOIRLab. This eye-catching stellar body is classified as a grand design spiral galaxy. Grand design spiral galaxies are characterized by prominent, well-defined arms that circle outwards from a distinct core. Only ten percent of spiral galaxies are given this descriptive name and they are considered the archetype of spiral galaxies owing to their ‘perfect’ structure. However, NGC 5364 is not as perfect as it may appear. Compared to other grand design spirals, its arms are actually amorphous and asymmetrical. This distortion is thought to be due to interactions with the nearby lenticular galaxy NGC 5363, which can be seen in this image as a fuzzy smear below NGC 5364. Despite its significantly smaller size, the close proximity of this galaxy to NGC 5364 results in a mutual tugging. This moves around the stars and gas within NGC 5364’s arms and warps the overall shape of the galaxy.

Provider: NOIRLab

Image Source: https://noirlab.edu/public/images/iotw2347a/

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

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
NGC 5364
Noirlab_iotw2347a_128
 

Position Details

Position (ICRS)
RA = 13h 55m 56.3s
DEC = 5° 6’ 54.3”
Orientation
North is 89.9° CW
Field of View
22.1 x 20.7 arcminutes
Constellation
Virgo

Color Mapping

  Telescope Spectral Band Wavelength
Red Blanco-4m (DECam) Optical (z) 926.0 nm
Green Blanco-4m (DECam) Optical (r) 642.0 nm
Blue Blanco-4m (DECam) Optical (g) 473.0 nm
Spectrum_base
Red
Green
Blue
Noirlab_iotw2347a_1280
×
ID
iotw2347a
Subject Category
Subject Name
NGC 5364
Credits
Dark Energy Survey/DOE/FNAL/DECam/CTIO/NOIRLab/NSF/AURAImage processing: R. Colombari and M. Zamani (NSF’s NOIRLab)
Release Date
2023-11-22T12:00:00
Lightyears
Redshift
Reference Url
https://noirlab.edu/public/images/iotw2347a/
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
z, r, g
Central Wavelength
926, 642, 473
Start Time
Integration Time
Dataset ID
None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
208.984413351, 5.11507998922
Reference Dimension
5000.0, 4677.0
Reference Pixel
2500.5, 2338.0
Scale
-7.36126758671569e-05, 7.3753249195132e-05
Rotation
-89.911708351819
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
iotw2347a
Metadata Date
2023-11-21T01:25:45+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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