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| Object: | M57 Ring Nebula | Date: | June 16th 2006 | Instrument: | C9.25 SCT | Camera: | SXH-H9 | Exposure: | Ha 5x 300s, OIII 3x 300s, SII 5x 300s | Filters: | Astronomik CCD | Comments: | A trial of narrow band imaging. Combined using a 'natural' colour palette. | |
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