Hubble Spies a Serpentine Spiral Galaxy

Esahubble_potw2214a_1024

esahubble_potw2214a April 4th, 2022

Credit: ESA/Hubble & NASA, J. WalshAcknowledgement: R. Colombari

The lazily winding spiral arms of the galaxy NGC 5921 snake across this image from the NASA/ESA Hubble Space Telescope. This galaxy lies approximately 80 million light-years from Earth, and much like our own galaxy, the Milky Way, contains a prominent bar. Roughly half of all spiral galaxies are thought to contain bars, and these bars affect their parent galaxies by fuelling star formation and affecting the motion of stars and interstellar gas.  Appropriately, given NGC 5921’s serpentine spiral arms, this galaxy resides in the constellation Serpens in the northern celestial hemisphere. Serpens is the only one of the 88 modern constellations to consist of two unconnected regions — Serpens Caput and Serpens Cauda. These two regions — whose names mean the Serpent’s Head and the Serpent’s Tail, respectively — are separated by Ophiuchus, the Serpent Bearer.  The scientific study behind this image was also split into two parts — observations from Hubble’s Wide Field Camera 3 and observations from the ground-based Gemini Observatory. These two observatories joined forces to better understand the relationship between galaxies like NGC 5921 and the supermassive black holes they contain. Hubble’s contribution to the study was to determine the masses of stars in the galaxies and also to take measurements that help calibrate the observations from Gemini. Together, the Hubble and Gemini observations provided astronomers with a census of nearby supermassive black holes in a diverse variety of galaxies.

Provider: Hubble Space Telescope | ESA

Image Source: https://esahubble.org/images/potw2214a/

Curator: ESA/Hubble, Baltimore, MD, United States

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
NGC 5921
Esahubble_potw2214a_128
 

Position Details

Position (ICRS)
RA = 15h 21m 55.8s
DEC = 5° 4’ 11.6”
Orientation
North is 43.8° CCW
Field of View
1.4 x 1.2 arcminutes
Constellation
Serpens

Color Mapping

  Telescope Spectral Band Wavelength
Red Hubble (WFC3) Infrared (H) 1.6 µm
Orange Hubble (WFC3) Optical (I) 814.0 nm
Green Hubble (WFC3) Optical (g) 475.0 nm
Green Hubble (WFC3) Optical (I) 814.0 nm
Blue Hubble (WFC3) Optical (g) 475.0 nm
Spectrum_base
Red
Orange
Green
Green
Blue
Esahubble_potw2214a_1280
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ID
potw2214a
Subject Category
Subject Name
NGC 5921
Credits
ESA/Hubble & NASA, J. WalshAcknowledgement: R. Colombari
Release Date
2022-04-04T06:00:00
Lightyears
Redshift
Reference Url
https://esahubble.org/images/potw2214a/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
WFC3, WFC3, WFC3, WFC3, WFC3
Color Assignment
Red, Orange, Green, Green, Blue
Band
Infrared, Optical, Optical, Optical, Optical
Bandpass
H, I, g, I, g
Central Wavelength
1600, 814, 475, 814, 475
Start Time
Integration Time
Dataset ID
None, None, None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
230.4823228114005, 5.069884998399829
Reference Dimension
2043.0, 1844.0
Reference Pixel
1021.5, 922.0
Scale
-1.1021774296910194e-05, 1.1021774296910194e-05
Rotation
43.839999999999868
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
ESA/Hubble
URL
https://esahubble.org
Name
Email
Telephone
Address
ESA Office, Space Telescope Science Institute, 3700 San Martin Dr
City
Baltimore
State/Province
MD
Postal Code
21218
Country
United States
Rights
Creative Commons Attribution 4.0 International License
Publisher
ESA/Hubble
Publisher ID
esahubble
Resource ID
potw2214a
Metadata Date
2022-03-21T01:42:01+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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