Globular Cluster M4
esahubble_opo0210d April 24th, 2002
Credit: NASA/ESA and H. Richer
Peering deep inside a cluster of several hundred thousand stars, the NASA/ESA Hubble Space Telescope uncovered the oldest burned-out stars in our Milky Way Galaxy. Located in the globular cluster M4, these small, dying stars - called white dwarfs - are giving astronomers a fresh reading on one of the biggest questions in astronomy: How old is the universe? The ancient white dwarfs in M4 are about 12 to 13 billion years old. After accounting for the time it took the cluster to form after the big bang, astronomers found that the age of the white dwarfs agrees with previous estimates for the universe's age.
Provider: Hubble Space Telescope | ESA
Image Source: https://www.spacetelescope.org/images/opo0210d/
Curator: ESA/Hubble, Garching bei München, Germany
Image Use Policy: Creative Commons Attribution 4.0 International License
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Image Details
Position Details
Color Mapping
- ID
- opo0210d
- Subject Category
- B.3.1.7 B.3.6.4.2
- Subject Name
- Messier 4, NGC 6121
- Credits
- NASA/ESA and H. Richer
- Release Date
- 2002-04-24T19:00:00
- Lightyears
- Redshift
- Reference Url
- https://www.spacetelescope.org/images/opo0210d/
- Type
- Observation
- Image Quality
- Distance Notes
- Facility
- Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
- Instrument
- WFPC2, WFPC2, WFPC2
- Color Assignment
- Grayscale, Grayscale, Grayscale
- Band
- Infrared, Optical, Ultraviolet
- Bandpass
- I, V, U
- Central Wavelength
- 814, 555, 336
- Start Time
- Integration Time
- 11800, 15000, 4800
- Dataset ID
- Notes
- Coordinate Frame
- ICRS
- Equinox
- J2000
- Reference Value
- 245.987904322, -26.5289917937
- Reference Dimension
- 1024.0, 1024.0
- Reference Pixel
- 512.0, 512.0
- Scale
- -9.1806017192e-06, 9.1806017192e-06
- Rotation
- 35.800000000000004
- 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
- Postal Code
- D-85748
- Country
- Germany
- Rights
- Creative Commons Attribution 4.0 International License
- Publisher
- ESA/Hubble
- Publisher ID
- esahubble
- Resource ID
- opo0210d
- Resource URL
- http://www.spacetelescope.org/static/archives/images/original/opo0210d.tif
- Related Resources
- Metadata Date
- 2012-09-17T10:51:11+02:00
- Metadata Version
- 1.1
Detailed color mapping information coming soon...
