Between Local and Laniakea

Esahubble_potw1821a_1024

esahubble_potw1821a May 21st, 2018

Credit: ESA/Hubble & NASA

At first glance, this image is dominated by the vibrant glow of the swirling spiral to the lower left of the frame. However, this galaxy is far from the most interesting spectacle here behind it sits a galaxy cluster. Galaxies are not randomly distributed in space; they swarm together, gathered up by the unyielding hand of gravity, to form groups and clusters. The Milky Way is a member of the Local Group, which is part of the Virgo Cluster, which in turn is part of the 100 000-galaxy-strong Laniakea Supercluster. The galaxy cluster seen in this image is known as SDSS J0333+0651. Clusters such as this can help astronomers understand the distant and therefore early Universe. SDSS J0333+0651 was imaged as part of a study of star formation in far-flung galaxies. Star-forming regions are typically not very large, stretching out for a few hundred light-years at most, so it is difficult for telescopes to resolve them at a distance. Even using its most sensitive and highest-resolution cameras, Hubble cannot resolve very distant star-forming regions, so astronomers use a cosmic trick: they search instead for galaxy clusters, which have a gravitational influence so immense that they warp the spacetime around them. This distortion acts like a lens, magnifying the light of galaxies sitting far behind the cluster and producing elongated arcs like the one seen to the left of centre in this image.

Provider: Hubble Space Telescope | ESA

Image Source: https://www.spacetelescope.org/images/potw1821a/

Curator: ESA/Hubble, Garching bei München, None, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
SDSS J0333+0651 [SPD2011] 1227
Subject - Distant Universe
Galaxy > Type > Gravitationally Lensed
Galaxy > Grouping > Cluster
Cosmology > Phenomenon > Lensing
Esahubble_potw1821a_128
 

Position Details

Position (ICRS)
RA = 3h 33m 2.6s
DEC = -6° 51’ 37.3”
Orientation
North is 18.1° CW
Field of View
2.0 x 1.5 arcminutes
Constellation
Eridanus

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_red Hubble Space Telescope (WFC3) Infrared (H) 1.6 µm
Arrow_left_green Hubble Space Telescope (WFC3) Infrared (J) 1.3 µm
Arrow_left_cyan Hubble Space Telescope (WFC3) Optical (I) 814.0 nm
Arrow_left_blue Hubble Space Telescope (WFC3) Optical (C) 390.0 nm
Spectrum_base
Arrow_top_red
Arrow_top_green
Arrow_top_cyan
Arrow_top_blue
Esahubble_potw1821a_1280
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ID
potw1821a
Subject Category
D.5.1.8   D.5.5.3   D.6.2.1  
Subject Name
SDSS J0333+0651, [SPD2011] 1227
Credits
ESA/Hubble & NASA
Release Date
2018-05-21T06:00:00
Lightyears
Redshift
Reference Url
https://www.spacetelescope.org/images/potw1821a/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
WFC3, WFC3, WFC3, WFC3
Color Assignment
Red, Green, Cyan, Blue
Band
Infrared, Infrared, Optical, Optical
Bandpass
H, J, I, C
Central Wavelength
1600, 1250, 814, 390
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
53.2608988473, -6.86036848104
Reference Dimension
2960.0, 2230.0
Reference Pixel
1480.0, 1115.0
Scale
-1.09994973217e-05, 1.09994973217e-05
Rotation
-18.080000000000041
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
ESA/Hubble
URL
http://www.spacetelescope.org
Name
Email
Telephone
Address
Karl-Schwarzschild-Strasse 2
City
Garching bei München
State/Province
None
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
ESA/Hubble
Publisher ID
esahubble
Resource ID
potw1821a
Metadata Date
2018-02-26T09:11:04+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.