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This category has the following 27 subcategories, out of 27 total.
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604:Astronomers by century and nationality
599:20th-century scientists by nationality
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609:20th-century scholars by nationality
446:20th-century New Zealand astronomers
158:20th-century Australian astronomers
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360:20th-century Hungarian astronomers
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145:20th-century Argentine astronomers
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426:20th-century Japanese astronomers
224:20th-century Canadian astronomers
171:20th-century Austrian astronomers
132:20th-century American astronomers
536:20th-century Swedish astronomers
523:20th-century Spanish astronomers
486:20th-century Russian astronomers
406:20th-century Italian astronomers
237:20th-century Chinese astronomers
204:20th-century British astronomers
191:20th-century Belgian astronomers
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466:20th-century Polish astronomers
380:20th-century Indian astronomers
327:20th-century German astronomers
307:20th-century French astronomers
270:20th-century Danish astronomers
549:20th-century Swiss astronomers
393:20th-century Irish astronomers
340:20th-century Greek astronomers
287:20th-century Dutch astronomers
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569:Yugoslav astronomers
510:Soviet astronomers
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136:(1 C, 349 P)
114:
75:
514:(1 C, 90 P)
291:(2 C, 69 P)
588:Categories
331:(112 P)
311:(119 P)
208:(226 P)
553:(23 P)
540:(31 P)
527:(14 P)
490:(13 P)
470:(26 P)
450:(27 P)
430:(86 P)
410:(51 P)
397:(29 P)
384:(28 P)
364:(15 P)
344:(17 P)
274:(19 P)
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228:(68 P)
195:(21 P)
175:(25 P)
162:(58 P)
149:(23 P)
573:(2 P)
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101:25th
96:24th
91:23rd
86:22nd
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499:S
479:R
459:P
439:N
419:J
373:I
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320:G
300:F
263:D
217:C
184:B
121:A
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