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Hydra A:
Hydra A is a galaxy cluster that is 840 million light years from Earth
(redshift = .054). The cluster gets its name from the
strong radio source, Hydra A, that originates in a
galaxy near the center of the cluster. Optical
observations show a few hundred galaxies in the
cluster. Chandra X-ray observations reveal a large
cloud of hot gas that extends throughout the cluster.
The gas cloud is several million light years across and
has a temperature of about 40 million degrees in the
outer parts decreasing to about 35 million degrees in
the inner region.
| Fast Facts for Hydra A: |
| Credit |
NASA/CXC/SAO |
| Scale |
Image is 2.7 arcmin on a side. |
| Category |
Groups & Clusters of Galaxies |
| Coordinates (J2000) |
RA 09h 18m 06s | Dec -12° 05' 45" |
| Constellation |
Hydra |
| Observation Dates |
October 30, 1999
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| Observation Time |
7 hours |
| Obs. IDs |
575
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| Color Code |
Intensity |
| Instrument |
ACIS |
| Distance Estimate |
840 million light years |
| Release Date |
December 09, 1999 |
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