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This category has the following 4 subcategories, out of 4 total.
0–9
Galaxies discovered in the 18th century
(7 C)
Galaxies discovered in the 19th century
(16 C)
Galaxies discovered in the 20th century
(1 C)
Galaxies discovered in the 21st century
(6 C, 1 P)
Categories
:
Galaxies
Astronomical objects by century of discovery
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