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Th.A.: NGC 7000 + IC 5070 H-Alpha
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Th.A.: QSI683_WSG8_SMC200
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Th.A.: EQ3_SynScan_QSI683
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Th.A.: EQ3_SynScan_background1
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Th.A.: NGC 7000 + IC 5070 HA, SII, OIII
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Th.A.: NGC6990 wide field