Guillaume Le Gentil
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What links here
Dark nebula
Edward Emerson Barnard
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Max Wolf
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Astronomical spectroscopy
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Trifid Nebula
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Yerkes Observatory
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Circinus
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Musca
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Coalsack Nebula
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Astronomical object
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Outer space
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Interstellar medium
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Astronomy
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Serpens
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Sagittarius (constellation)
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Star
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Ophiuchus
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Nebula
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Molecular cloud
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Crux
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Corona Australis
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Constellation
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Absolute magnitude
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