Nebula NGC 6822
The irregular nebula NGC 6822, what would now be called a nearby dwarf galaxy. Thanks to the 100-inch telescope, Hubble was able to detect variable stars here, although it is (by modern measures) 1.5 million light years distant.
Image courtesy
NASA/NOAO/AURA/NSF
.
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by the
Center for History of Physics
, a Division of the
American Institute of Physics
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