British Astronomical Association
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Andrew Claude de la Cherois Crommelin
Crommelin (lunar crater)
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1939 in Ireland
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Lunar distance
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Verlet integration
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Philip Herbert Cowell
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List of astronomical objects named after people
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HM Nautical Almanac Office
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List of craters on Mars: A–G
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Inex
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List of astronomers
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1939
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May 29
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John Masefield
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Andrew Crommelin
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