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Maarten VLH: M49 and friends in Virgo
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Maarten VLH: M61 and supernova
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Maarten VLH: M61 with supernovae
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Maarten VLH: MarkarianChain_QSIWSG583_AP600GTO_TMB92_100percent
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Maarten VLH: M 84 / M 86 - Markarian's Chain
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Maarten VLH: M 60, NGC 4647 and SN2022hr