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| Object: | M81 | Date: | March 15th 2003 | Instrument: | LX200 10" f/10 + 0.33 FR | Camera: | SXV-H9 | Exposure: | 10x 2 minutes | Filters: | Orion Skyglow | Comments: | Taken with a f/3.3 focal reducer (not calculated the exact ratio yet but it 'looks' around f/4 to me) and an Orion Skyglow filter. The noise is bad (because of the moon - very marginal conditions) and I disturbed the optical setup before taking a flat field, so the background is not corrected as well as it should be | |
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