List of galaxy groups and clusters
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What links here
Halton Arp
Messier 22
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Tabor Academy (Massachusetts)
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Helen B. Warner Prize for Astronomy
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Astronomical Society of the Pacific
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List of astronomical objects named after people
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Walter Baade
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Centaurus A
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Philipp Frank
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Quasars, Redshifts and Controversies
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Leo Minor
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Non-standard cosmology
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Halton
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Arp
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List of astronomers
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March 21
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December 28
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