Galaxy cluster Abell 520's mass (HST WFPC2)
esahubble_opo1210g March 23rd, 2012
Credit: NASA, ESA, and M.J. Jee (University of California, Davis)
This image shows the location of most of the mass in merging galaxy cluster Abell 520's core, which is dominated by dark matter. Dark matter is an invisible substance that makes up most of the Universe's mass. The dark-matter map was derived from Hubble Wide Field Planetary Camera 2 observations, by detecting how light from distant objects is distorted by the cluster galaxies, an effect called gravitational lensing. Abell 520 resides 2.4 billion light-years away.
Provider: Hubble Space Telescope | ESA
Image Source: https://www.spacetelescope.org/images/opo1210g/
Curator: ESA/Hubble, Garching bei München, None, Germany
Image Use Policy: Creative Commons Attribution 4.0 International License
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Full Size Image
(2734 x 1758)
JPG (134 KB) Source File
- Additional Sizes (JPG)
- 320 x 205 (19 KB)
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Image Details
Position Details
Color Mapping
- ID
- opo1210g
- Subject Category
- D.5.5.3 D.6.2.3
- Subject Name
- Abell 520
- Credits
- NASA, ESA, and M.J. Jee (University of California, Davis)
- Release Date
- 2012-03-23T17:06:54
- Lightyears
- Redshift
- Reference Url
- https://www.spacetelescope.org/images/opo1210g/
- Type
- Observation
- Image Quality
- Distance Notes
- Facility
- Hubble Space Telescope
- Instrument
- WFPC2
- Color Assignment
- Blue
- Band
- Optical
- Bandpass
- None
- Central Wavelength
- Start Time
- Integration Time
- Dataset ID
- None
- Notes
- Coordinate Frame
- ICRS
- Equinox
- J2000
- Reference Value
- 73.5435494284, 2.91483260254
- Reference Dimension
- 2734.0, 1758.0
- Reference Pixel
- 1367.0, 879.0
- Scale
- -5.1609657969e-05, 5.1609657969e-05
- Rotation
- 57.299999999999912
- Coordinate System Projection:
- TAN
- Quality
- Full
- FITS Header
- Notes
- Creator (Curator)
- ESA/Hubble
- URL
- http://www.spacetelescope.org/
- Name
- 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
- opo1210g
- Resource URL
- http://www.spacetelescope.org/static/archives/images/original/opo1210g.tif
- Related Resources
- Metadata Date
- 2019-10-07T11:41:50.406851
- Metadata Version
- 1.1
Detailed color mapping information coming soon...
